57439801 has 4 divisors (see below), whose sum is σ = 57573504. Its totient is φ = 57306100.

The previous prime is 57439783. The next prime is 57439813. The reversal of 57439801 is 10893475.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57439801 - 2⁵ = 57439769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57439861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66205 + ... + 67066.

It is an arithmetic number, because the mean of its divisors is an integer number (14393376).

Almost surely, 2^57439801 is an apocalyptic number.

It is an amenable number.

57439801 is a deficient number, since it is larger than the sum of its proper divisors (133703).

57439801 is a wasteful number, since it uses less digits than its factorization.

57439801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133702.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 57439801 is about 7578.9050000643. The cubic root of 57439801 is about 385.8373879918.

The spelling of 57439801 in words is "fifty-seven million, four hundred thirty-nine thousand, eight hundred one".