51901927 has 12 divisors (see below), whose sum is σ = 65865096. Its totient is φ = 40442640.

The previous prime is 51901919. The next prime is 51901933. The reversal of 51901927 is 72910915.

It is not a de Polignac number, because 51901927 - 2³ = 51901919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51901892 and 51901901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51901907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47608 + ... + 48685.

It is an arithmetic number, because the mean of its divisors is an integer number (5488758).

Almost surely, 2^51901927 is an apocalyptic number.

51901927 is a deficient number, since it is larger than the sum of its proper divisors (13963169).

51901927 is a wasteful number, since it uses less digits than its factorization.

51901927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96318 (or 96311 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 34.

The square root of 51901927 is about 7204.2992025595. The cubic root of 51901927 is about 373.0163150796.

It can be divided in two parts, 5190 and 1927, that added together give a palindrome (7117).

The spelling of 51901927 in words is "fifty-one million, nine hundred one thousand, nine hundred twenty-seven".