57248431 has 2 divisors, whose sum is σ = 57248432. Its totient is φ = 57248430.

The previous prime is 57248419. The next prime is 57248453. The reversal of 57248431 is 13484275.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57248431 - 2⁹ = 57247919 is a prime.

It is a super-2 number, since 2×57248431² = 6554765703923522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57248461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28624215 + 28624216.

It is an arithmetic number, because the mean of its divisors is an integer number (28624216).

Almost surely, 2^57248431 is an apocalyptic number.

57248431 is a deficient number, since it is larger than the sum of its proper divisors (1).

57248431 is an equidigital number, since it uses as much as digits as its factorization.

57248431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 34.

The square root of 57248431 is about 7566.2692920620. The cubic root of 57248431 is about 385.4084179947.

The spelling of 57248431 in words is "fifty-seven million, two hundred forty-eight thousand, four hundred thirty-one".