253689552 has 30 divisors (see below), whose sum is σ = 709978802. Its totient is φ = 84563136.

The previous prime is 253689547. The next prime is 253689571. The reversal of 253689552 is 255986352.

It can be written as a sum of positive squares in only one way, i.e., 242238096 + 11451456 = 15564^2 + 3384^2 .

It is a junction number, because it is equal to n+sod(n) for n = 253689498 and 253689507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 880723 + ... + 881010.

Almost surely, 2^253689552 is an apocalyptic number.

It is an amenable number.

253689552 is an abundant number, since it is smaller than the sum of its proper divisors (456289250).

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

253689552 is a wasteful number, since it uses less digits than its factorization.

253689552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761747 (or 1761738 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 253689552 is about 15927.6348526704. The cubic root of 253689552 is about 633.0444328401.

The spelling of 253689552 in words is "two hundred fifty-three million, six hundred eighty-nine thousand, five hundred fifty-two".