57408751 has 2 divisors, whose sum is σ = 57408752. Its totient is φ = 57408750.

The previous prime is 57408739. The next prime is 57408809. The reversal of 57408751 is 15780475.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57408751 - 2¹⁷ = 57277679 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57408751.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57408731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28704375 + 28704376.

It is an arithmetic number, because the mean of its divisors is an integer number (28704376).

Almost surely, 2^57408751 is an apocalyptic number.

57408751 is the 4375-th hex number.

57408751 is a deficient number, since it is larger than the sum of its proper divisors (1).

57408751 is an equidigital number, since it uses as much as digits as its factorization.

57408751 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39200, while the sum is 37.

The square root of 57408751 is about 7576.8562742077. The cubic root of 57408751 is about 385.7678519440.

The spelling of 57408751 in words is "fifty-seven million, four hundred eight thousand, seven hundred fifty-one".