52471931 has 2 divisors, whose sum is σ = 52471932. Its totient is φ = 52471930.

The previous prime is 52471927. The next prime is 52471943. The reversal of 52471931 is 13917425.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52471931 - 2² = 52471927 is a prime.

It is a super-2 number, since 2×52471931² = 5506607085737522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52471981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26235965 + 26235966.

It is an arithmetic number, because the mean of its divisors is an integer number (26235966).

Almost surely, 2^52471931 is an apocalyptic number.

52471931 is a deficient number, since it is larger than the sum of its proper divisors (1).

52471931 is an equidigital number, since it uses as much as digits as its factorization.

52471931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 32.

The square root of 52471931 is about 7243.7511691112. The cubic root of 52471931 is about 374.3768756682.

The spelling of 52471931 in words is "fifty-two million, four hundred seventy-one thousand, nine hundred thirty-one".