57473291 has 2 divisors, whose sum is σ = 57473292. Its totient is φ = 57473290.

The previous prime is 57473261. The next prime is 57473329. The reversal of 57473291 is 19237475.

It is an a-pointer prime, because the next prime (57473329) can be obtained adding 57473291 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57473291 is a prime.

It is not a weakly prime, because it can be changed into another prime (57473261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28736645 + 28736646.

It is an arithmetic number, because the mean of its divisors is an integer number (28736646).

Almost surely, 2^57473291 is an apocalyptic number.

57473291 is a deficient number, since it is larger than the sum of its proper divisors (1).

57473291 is an equidigital number, since it uses as much as digits as its factorization.

57473291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 38.

The square root of 57473291 is about 7581.1141001834. The cubic root of 57473291 is about 385.9123603014.

The spelling of 57473291 in words is "fifty-seven million, four hundred seventy-three thousand, two hundred ninety-one".