51033136 has 80 divisors (see below), whose sum is σ = 128706048. Its totient is φ = 19008000.

The previous prime is 51033119. The next prime is 51033137. The reversal of 51033136 is 63133015.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51033137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27436 + ... + 29236.

Almost surely, 2^51033136 is an apocalyptic number.

51033136 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51033136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64353024).

51033136 is an abundant number, since it is smaller than the sum of its proper divisors (77672912).

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

51033136 is a wasteful number, since it uses less digits than its factorization.

51033136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850 (or 1844 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 51033136 is about 7143.7480358702. The cubic root of 51033136 is about 370.9232749169.

It can be divided in two parts, 5103 and 3136, that multiplied together give a cube (16003008 = 252³).

The spelling of 51033136 in words is "fifty-one million, thirty-three thousand, one hundred thirty-six".