245687552 has 72 divisors (see below), whose sum is σ = 547710240. Its totient is φ = 109025280.

The previous prime is 245687531. The next prime is 245687557. The reversal of 245687552 is 255786542.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245687557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120074 + ... + 122102.

Almost surely, 2^245687552 is an apocalyptic number.

245687552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245687552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273855120).

245687552 is an abundant number, since it is smaller than the sum of its proper divisors (302022688).

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

245687552 is a wasteful number, since it uses less digits than its factorization.

245687552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2099 (or 2085 counting only the distinct ones).

The product of its digits is 672000, while the sum is 44.

The square root of 245687552 is about 15674.4234981705. The cubic root of 245687552 is about 626.3172661188.

The spelling of 245687552 in words is "two hundred forty-five million, six hundred eighty-seven thousand, five hundred fifty-two".