51915883 has 2 divisors, whose sum is σ = 51915884. Its totient is φ = 51915882.

The previous prime is 51915869. The next prime is 51915947. The reversal of 51915883 is 38851915.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51915883 is a prime.

It is not a weakly prime, because it can be changed into another prime (51915833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25957941 + 25957942.

It is an arithmetic number, because the mean of its divisors is an integer number (25957942).

Almost surely, 2^51915883 is an apocalyptic number.

51915883 is a deficient number, since it is larger than the sum of its proper divisors (1).

51915883 is an equidigital number, since it uses as much as digits as its factorization.

51915883 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 40.

The square root of 51915883 is about 7205.2677257684. The cubic root of 51915883 is about 373.0497457534.

The spelling of 51915883 in words is "fifty-one million, nine hundred fifteen thousand, eight hundred eighty-three".