245545542 has 96 divisors (see below), whose sum is σ = 603162144. Its totient is φ = 72135360.

The previous prime is 245545537. The next prime is 245545543.

245545542 is a `hidden beast` number, since 24 + 55 + 45 + 542 = 666.

245545542 is nontrivially palindromic in base 10.

245545542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×245545542² = 120585226392147528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 245545497 and 245545506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245545543) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 886308 + ... + 886584.

It is an arithmetic number, because the mean of its divisors is an integer number (6282939).

Almost surely, 2^245545542 is an apocalyptic number.

245545542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 245545542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301581072).

245545542 is an abundant number, since it is smaller than the sum of its proper divisors (357616602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245545542 is a wasteful number, since it uses less digits than its factorization.

245545542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355 (or 330 counting only the distinct ones).

The product of its digits is 160000, while the sum is 36.

The square root of 245545542 is about 15669.8928522182. The cubic root of 245545542 is about 626.1965701963.

The spelling of 245545542 in words is "two hundred forty-five million, five hundred forty-five thousand, five hundred forty-two".