245545544 has 32 divisors (see below), whose sum is σ = 480003840. Its totient is φ = 117624000.

The previous prime is 245545543. The next prime is 245545561. The reversal of 245545544 is 445545542.

It is a super-2 number, since 2×245545544² = 120585228356511872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 245545498 and 245545507.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20147 + ... + 29949.

It is an arithmetic number, because the mean of its divisors is an integer number (15000120).

Almost surely, 2^245545544 is an apocalyptic number.

It is an amenable number.

245545544 is a deficient number, since it is larger than the sum of its proper divisors (234458296).

245545544 is a wasteful number, since it uses less digits than its factorization.

245545544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9941 (or 9937 counting only the distinct ones).

The product of its digits is 320000, while the sum is 38.

The square root of 245545544 is about 15669.8929160349. The cubic root of 245545544 is about 626.1965718965.

The spelling of 245545544 in words is "two hundred forty-five million, five hundred forty-five thousand, five hundred forty-four".