57421753 has 2 divisors, whose sum is σ = 57421754. Its totient is φ = 57421752.

The previous prime is 57421729. The next prime is 57421759. The reversal of 57421753 is 35712475.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57198969 + 222784 = 7563^2 + 472^2 .

It is a cyclic number.

It is not a de Polignac number, because 57421753 - 2²¹ = 55324601 is a prime.

It is not a weakly prime, because it can be changed into another prime (57421759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28710876 + 28710877.

It is an arithmetic number, because the mean of its divisors is an integer number (28710877).

Almost surely, 2^57421753 is an apocalyptic number.

It is an amenable number.

57421753 is a deficient number, since it is larger than the sum of its proper divisors (1).

57421753 is an equidigital number, since it uses as much as digits as its factorization.

57421753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29400, while the sum is 34.

The square root of 57421753 is about 7577.7142331972. The cubic root of 57421753 is about 385.7969727947.

The spelling of 57421753 in words is "fifty-seven million, four hundred twenty-one thousand, seven hundred fifty-three".