57989261 has 16 divisors (see below), whose sum is σ = 68257728. Its totient is φ = 48672000.

The previous prime is 57989257. The next prime is 57989297. The reversal of 57989261 is 16298975.

It is a cyclic number.

It is not a de Polignac number, because 57989261 - 2² = 57989257 is a prime.

It is a super-2 number, since 2×57989261² = 6725508782652242, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57989201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6986 + ... + 12836.

It is an arithmetic number, because the mean of its divisors is an integer number (4266108).

Almost surely, 2^57989261 is an apocalyptic number.

It is an amenable number.

57989261 is a deficient number, since it is larger than the sum of its proper divisors (10268467).

57989261 is a wasteful number, since it uses less digits than its factorization.

57989261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5932.

The product of its digits is 272160, while the sum is 47.

The square root of 57989261 is about 7615.0680233337. The cubic root of 57989261 is about 387.0637721604.

The spelling of 57989261 in words is "fifty-seven million, nine hundred eighty-nine thousand, two hundred sixty-one".