51923291 has 12 divisors (see below), whose sum is σ = 60869160. Its totient is φ = 44160480.

The previous prime is 51923281. The next prime is 51923293. The reversal of 51923291 is 19232915.

It is a de Polignac number, because none of the positive numbers 2^k-51923291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51923293) 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, 2375 + ... + 10463.

It is an arithmetic number, because the mean of its divisors is an integer number (5072430).

Almost surely, 2^51923291 is an apocalyptic number.

51923291 is a deficient number, since it is larger than the sum of its proper divisors (8945869).

51923291 is a wasteful number, since it uses less digits than its factorization.

51923291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8234 (or 8227 counting only the distinct ones).

The product of its digits is 4860, while the sum is 32.

The square root of 51923291 is about 7205.7817757687. The cubic root of 51923291 is about 373.0674886926.

The spelling of 51923291 in words is "fifty-one million, nine hundred twenty-three thousand, two hundred ninety-one".