51157401 has 16 divisors (see below), whose sum is σ = 70143744. Its totient is φ = 33146064.

The previous prime is 51157399. The next prime is 51157411. The reversal of 51157401 is 10475115.

It is not a de Polignac number, because 51157401 - 2¹ = 51157399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51157411) 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, 28410 + ... + 30156.

It is an arithmetic number, because the mean of its divisors is an integer number (4383984).

Almost surely, 2^51157401 is an apocalyptic number.

It is an amenable number.

51157401 is a deficient number, since it is larger than the sum of its proper divisors (18986343).

51157401 is a wasteful number, since it uses less digits than its factorization.

51157401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020.

The product of its (nonzero) digits is 700, while the sum is 24.

The square root of 51157401 is about 7152.4402129623. The cubic root of 51157401 is about 371.2240952801.

The spelling of 51157401 in words is "fifty-one million, one hundred fifty-seven thousand, four hundred one".