51372351 has 18 divisors (see below), whose sum is σ = 78830232. Its totient is φ = 32232000.

The previous prime is 51372341. The next prime is 51372353. The reversal of 51372351 is 15327315.

It is not a de Polignac number, because 51372351 - 2¹⁷ = 51241279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51372353) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7275 + ... + 12476.

Almost surely, 2^51372351 is an apocalyptic number.

51372351 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

51372351 is a deficient number, since it is larger than the sum of its proper divisors (27457881).

51372351 is a wasteful number, since it uses less digits than its factorization.

51372351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19791 (or 19771 counting only the distinct ones).

The product of its digits is 3150, while the sum is 27.

The square root of 51372351 is about 7167.4508020635. The cubic root of 51372351 is about 371.7432975798.

Adding to 51372351 its reverse (15327315), we get a palindrome (66699666).

The spelling of 51372351 in words is "fifty-one million, three hundred seventy-two thousand, three hundred fifty-one".