51916475 has 24 divisors (see below), whose sum is σ = 71578752. Its totient is φ = 37094400.

The previous prime is 51916471. The next prime is 51916477. The reversal of 51916475 is 57461915.

It is not a de Polignac number, because 51916475 - 2² = 51916471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51916471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7499 + ... + 12651.

It is an arithmetic number, because the mean of its divisors is an integer number (2982448).

Almost surely, 2^51916475 is an apocalyptic number.

51916475 is a deficient number, since it is larger than the sum of its proper divisors (19662277).

51916475 is a wasteful number, since it uses less digits than its factorization.

51916475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5207 (or 5202 counting only the distinct ones).

The product of its digits is 37800, while the sum is 38.

The square root of 51916475 is about 7205.3088067063. The cubic root of 51916475 is about 373.0511637177.

The spelling of 51916475 in words is "fifty-one million, nine hundred sixteen thousand, four hundred seventy-five".