57319961 has 8 divisors (see below), whose sum is σ = 59259648. Its totient is φ = 55386000.

The previous prime is 57319957. The next prime is 57319981. The reversal of 57319961 is 16991375.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57319961 - 2² = 57319957 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57319981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30746 + ... + 32556.

It is an arithmetic number, because the mean of its divisors is an integer number (7407456).

Almost surely, 2^57319961 is an apocalyptic number.

It is an amenable number.

57319961 is a deficient number, since it is larger than the sum of its proper divisors (1939687).

57319961 is a wasteful number, since it uses less digits than its factorization.

57319961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2863.

The product of its digits is 51030, while the sum is 41.

The square root of 57319961 is about 7570.9947166802. The cubic root of 57319961 is about 385.5688694967.

The spelling of 57319961 in words is "fifty-seven million, three hundred nineteen thousand, nine hundred sixty-one".