253432655 has 12 divisors (see below), whose sum is σ = 353771640. Its totient is φ = 173782224.

The previous prime is 253432649. The next prime is 253432661. The reversal of 253432655 is 556234352.

It is an interprime number because it is at equal distance from previous prime (253432649) and next prime (253432661).

It is not a de Polignac number, because 253432655 - 2⁴ = 253432639 is a prime.

It is a super-2 number, since 2×253432655² = 128456221240698050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 516965 + ... + 517454.

It is an arithmetic number, because the mean of its divisors is an integer number (29480970).

Almost surely, 2^253432655 is an apocalyptic number.

253432655 is a deficient number, since it is larger than the sum of its proper divisors (100338985).

253432655 is a wasteful number, since it uses less digits than its factorization.

253432655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034438 (or 1034431 counting only the distinct ones).

The product of its digits is 108000, while the sum is 35.

The square root of 253432655 is about 15919.5683044485. The cubic root of 253432655 is about 632.8306779577.

The spelling of 253432655 in words is "two hundred fifty-three million, four hundred thirty-two thousand, six hundred fifty-five".