57453731 has 2 divisors, whose sum is σ = 57453732. Its totient is φ = 57453730.

The previous prime is 57453707. The next prime is 57453733. The reversal of 57453731 is 13735475.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57453731 - 2⁶ = 57453667 is a prime.

It is a super-2 number, since 2×57453731² = 6601862411640722, which contains 22 as substring.

Together with 57453733, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 57453691 and 57453700.

It is not a weakly prime, because it can be changed into another prime (57453733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28726865 + 28726866.

It is an arithmetic number, because the mean of its divisors is an integer number (28726866).

Almost surely, 2^57453731 is an apocalyptic number.

57453731 is a deficient number, since it is larger than the sum of its proper divisors (1).

57453731 is an equidigital number, since it uses as much as digits as its factorization.

57453731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44100, while the sum is 35.

The square root of 57453731 is about 7579.8239425464. The cubic root of 57453731 is about 385.8685758923.

The spelling of 57453731 in words is "fifty-seven million, four hundred fifty-three thousand, seven hundred thirty-one".