51157033 has 8 divisors (see below), whose sum is σ = 51738408. Its totient is φ = 50578944.

The previous prime is 51157019. The next prime is 51157049. The reversal of 51157033 is 33075115.

It can be written as a sum of positive squares in 4 ways, for example, as 419904 + 50737129 = 648^2 + 7123^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51157033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51156989 and 51157007.

It is not an unprimeable number, because it can be changed into a prime (51157933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42285 + ... + 43477.

It is an arithmetic number, because the mean of its divisors is an integer number (6467301).

Almost surely, 2^51157033 is an apocalyptic number.

It is an amenable number.

51157033 is a deficient number, since it is larger than the sum of its proper divisors (581375).

51157033 is a wasteful number, since it uses less digits than its factorization.

51157033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643.

The product of its (nonzero) digits is 1575, while the sum is 25.

The square root of 51157033 is about 7152.4144874301. The cubic root of 51157033 is about 371.2232051463.

The spelling of 51157033 in words is "fifty-one million, one hundred fifty-seven thousand, thirty-three".