57498779 has 8 divisors (see below), whose sum is σ = 61989312. Its totient is φ = 53017920.

The previous prime is 57498767. The next prime is 57498817. The reversal of 57498779 is 97789475.

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 57498779 - 2¹² = 57494683 is a prime.

It is a super-2 number, since 2×57498779² = 6612219172981682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57498079) 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, 14207 + ... + 17799.

It is an arithmetic number, because the mean of its divisors is an integer number (7748664).

Almost surely, 2^57498779 is an apocalyptic number.

57498779 is a deficient number, since it is larger than the sum of its proper divisors (4490533).

57498779 is a wasteful number, since it uses less digits than its factorization.

57498779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4837.

The product of its digits is 4445280, while the sum is 56.

The square root of 57498779 is about 7582.7949332683. The cubic root of 57498779 is about 385.9693994373.

The spelling of 57498779 in words is "fifty-seven million, four hundred ninety-eight thousand, seven hundred seventy-nine".