57373709 has 4 divisors (see below), whose sum is σ = 57393504. Its totient is φ = 57353916.

The previous prime is 57373651. The next prime is 57373747. The reversal of 57373709 is 90737375.

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 a de Polignac number, because none of the positive numbers 2^k-57373709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57373009) 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, 4607 + ... + 11660.

It is an arithmetic number, because the mean of its divisors is an integer number (14348376).

Almost surely, 2^57373709 is an apocalyptic number.

It is an amenable number.

57373709 is a deficient number, since it is larger than the sum of its proper divisors (19795).

57373709 is a wasteful number, since it uses less digits than its factorization.

57373709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19794.

The product of its (nonzero) digits is 138915, while the sum is 41.

The square root of 57373709 is about 7574.5434845936. The cubic root of 57373709 is about 385.6893457452.

The spelling of 57373709 in words is "fifty-seven million, three hundred seventy-three thousand, seven hundred nine".