57501481 has 2 divisors, whose sum is σ = 57501482. Its totient is φ = 57501480.

The previous prime is 57501473. The next prime is 57501511. The reversal of 57501481 is 18410575.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32661225 + 24840256 = 5715^2 + 4984^2 .

It is a cyclic number.

It is not a de Polignac number, because 57501481 - 2³ = 57501473 is a prime.

It is a super-2 number, since 2×57501481² = 6612840634386722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57501181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28750740 + 28750741.

It is an arithmetic number, because the mean of its divisors is an integer number (28750741).

Almost surely, 2^57501481 is an apocalyptic number.

It is an amenable number.

57501481 is a deficient number, since it is larger than the sum of its proper divisors (1).

57501481 is an equidigital number, since it uses as much as digits as its factorization.

57501481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 57501481 is about 7582.9730976709. The cubic root of 57501481 is about 385.9754452062.

The spelling of 57501481 in words is "fifty-seven million, five hundred one thousand, four hundred eighty-one".