57451651 has 2 divisors, whose sum is σ = 57451652. Its totient is φ = 57451650.

The previous prime is 57451643. The next prime is 57451699. The reversal of 57451651 is 15615475.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57451651 - 2³ = 57451643 is a prime.

It is not a weakly prime, because it can be changed into another prime (57451601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28725825 + 28725826.

It is an arithmetic number, because the mean of its divisors is an integer number (28725826).

Almost surely, 2^57451651 is an apocalyptic number.

57451651 is a deficient number, since it is larger than the sum of its proper divisors (1).

57451651 is an equidigital number, since it uses as much as digits as its factorization.

57451651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21000, while the sum is 34.

The square root of 57451651 is about 7579.6867349515. The cubic root of 57451651 is about 385.8639192970.

It can be divided in two parts, 5745 and 1651, that added together give a square (7396 = 86²).

The spelling of 57451651 in words is "fifty-seven million, four hundred fifty-one thousand, six hundred fifty-one".