51885023 has 2 divisors, whose sum is σ = 51885024. Its totient is φ = 51885022.

The previous prime is 51885017. The next prime is 51885061. The reversal of 51885023 is 32058815.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51885023 - 2⁴ = 51885007 is a prime.

It is a super-2 number, since 2×51885023² = 5384111223421058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51885083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25942511 + 25942512.

It is an arithmetic number, because the mean of its divisors is an integer number (25942512).

Almost surely, 2^51885023 is an apocalyptic number.

51885023 is a deficient number, since it is larger than the sum of its proper divisors (1).

51885023 is an equidigital number, since it uses as much as digits as its factorization.

51885023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 51885023 is about 7203.1259186550. The cubic root of 51885023 is about 372.9758146408.

The spelling of 51885023 in words is "fifty-one million, eight hundred eighty-five thousand, twenty-three".