253951236 has 216 divisors, whose sum is σ = 852860736. Its totient is φ = 61885440.

The previous prime is 253951183. The next prime is 253951261. The reversal of 253951236 is 632159352.

253951236 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 253951236.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 800950 + ... + 801266.

Almost surely, 2^253951236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253951236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (426430368).

253951236 is an abundant number, since it is smaller than the sum of its proper divisors (598909500).

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

253951236 is a wasteful number, since it uses less digits than its factorization.

253951236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379 (or 357 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 253951236 is about 15935.8475143307. The cubic root of 253951236 is about 633.2620225035.

The spelling of 253951236 in words is "two hundred fifty-three million, nine hundred fifty-one thousand, two hundred thirty-six".