57259481 has 2 divisors, whose sum is σ = 57259482. Its totient is φ = 57259480.

The previous prime is 57259471. The next prime is 57259537. The reversal of 57259481 is 18495275.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50055625 + 7203856 = 7075^2 + 2684^2 .

It is a cyclic number.

It is not a de Polignac number, because 57259481 - 2¹⁸ = 56997337 is a prime.

It is a super-2 number, since 2×57259481² = 6557296328778722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57259471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28629740 + 28629741.

It is an arithmetic number, because the mean of its divisors is an integer number (28629741).

Almost surely, 2^57259481 is an apocalyptic number.

It is an amenable number.

57259481 is a deficient number, since it is larger than the sum of its proper divisors (1).

57259481 is an equidigital number, since it uses as much as digits as its factorization.

57259481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 41.

The square root of 57259481 is about 7566.9994713889. Note that the first 3 decimals coincide. The cubic root of 57259481 is about 385.4332133703.

The spelling of 57259481 in words is "fifty-seven million, two hundred fifty-nine thousand, four hundred eighty-one".