51371495 has 32 divisors (see below), whose sum is σ = 73543680. Its totient is φ = 33707520.

The previous prime is 51371471. The next prime is 51371521. The reversal of 51371495 is 59417315.

It is not a de Polignac number, because 51371495 - 2⁶ = 51371431 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122396 + ... + 122814.

It is an arithmetic number, because the mean of its divisors is an integer number (2298240).

Almost surely, 2^51371495 is an apocalyptic number.

51371495 is a deficient number, since it is larger than the sum of its proper divisors (22172185).

51371495 is a wasteful number, since it uses less digits than its factorization.

51371495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575.

The product of its digits is 18900, while the sum is 35.

The square root of 51371495 is about 7167.3910874181. The cubic root of 51371495 is about 371.7412328243.

The spelling of 51371495 in words is "fifty-one million, three hundred seventy-one thousand, four hundred ninety-five".