51157032 has 32 divisors (see below), whose sum is σ = 128150880. Its totient is φ = 17017920.

The previous prime is 51157019. The next prime is 51157049. The reversal of 51157032 is 23075115.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 51156993 and 51157011.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11838 + ... + 15570.

It is an arithmetic number, because the mean of its divisors is an integer number (4004715).

Almost surely, 2^51157032 is an apocalyptic number.

It is an amenable number.

51157032 is an abundant number, since it is smaller than the sum of its proper divisors (76993848).

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

51157032 is a wasteful number, since it uses less digits than its factorization.

51157032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4313 (or 4309 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 51157032 is about 7152.4144175236. The cubic root of 51157032 is about 371.2232027274.

The spelling of 51157032 in words is "fifty-one million, one hundred fifty-seven thousand, thirty-two".