253333632 has 32 divisors (see below), whose sum is σ = 672918480. Its totient is φ = 84444416.

The previous prime is 253333621. The next prime is 253333649. The reversal of 253333632 is 236333352.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×253333632² = 128355858204622848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 253333632.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329478 + ... + 330245.

Almost surely, 2^253333632 is an apocalyptic number.

It is an amenable number.

253333632 is an abundant number, since it is smaller than the sum of its proper divisors (419584848).

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

253333632 is an equidigital number, since it uses as much as digits as its factorization.

253333632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659740 (or 659728 counting only the distinct ones).

The product of its digits is 29160, while the sum is 30.

The square root of 253333632 is about 15916.4578974092. The cubic root of 253333632 is about 632.7482458607.

Adding to 253333632 its reverse (236333352), we get a palindrome (489666984).

The spelling of 253333632 in words is "two hundred fifty-three million, three hundred thirty-three thousand, six hundred thirty-two".