51372051 has 4 divisors (see below), whose sum is σ = 68496072. Its totient is φ = 34248032.

The previous prime is 51372031. The next prime is 51372059. The reversal of 51372051 is 15027315.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51372051 - 2⁵ = 51372019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51372059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8562006 + ... + 8562011.

It is an arithmetic number, because the mean of its divisors is an integer number (17124018).

Almost surely, 2^51372051 is an apocalyptic number.

51372051 is a deficient number, since it is larger than the sum of its proper divisors (17124021).

51372051 is a wasteful number, since it uses less digits than its factorization.

51372051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17124020.

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

The square root of 51372051 is about 7167.4298740902. The cubic root of 51372051 is about 371.7425739531.

Adding to 51372051 its reverse (15027315), we get a palindrome (66399366).

The spelling of 51372051 in words is "fifty-one million, three hundred seventy-two thousand, fifty-one".