253861632 has 54 divisors (see below), whose sum is σ = 731952312. Its totient is φ = 84619776.

The previous prime is 253861631. The next prime is 253861633. The reversal of 253861632 is 236168352.

It is a happy number.

253861632 is a `hidden beast` number, since 2 + 5 + 3 + 8 + 616 + 32 = 666.

It is an interprime number because it is at equal distance from previous prime (253861631) and next prime (253861633).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253861631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52788 + ... + 57395.

Almost surely, 2^253861632 is an apocalyptic number.

It is an amenable number.

253861632 is an abundant number, since it is smaller than the sum of its proper divisors (478090680).

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

253861632 is a wasteful number, since it uses less digits than its factorization.

253861632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110205 (or 110188 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 253861632 is about 15933.0358689109. The cubic root of 253861632 is about 633.1875338127.

The spelling of 253861632 in words is "two hundred fifty-three million, eight hundred sixty-one thousand, six hundred thirty-two".