57802261 has 16 divisors (see below), whose sum is σ = 67436928. Its totient is φ = 48960000.

The previous prime is 57802253. The next prime is 57802273. The reversal of 57802261 is 16220875.

It is not a de Polignac number, because 57802261 - 2³ = 57802253 is a prime.

It is a super-2 number, since 2×57802261² = 6682202753424242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57802201) 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, 17761 + ... + 20761.

It is an arithmetic number, because the mean of its divisors is an integer number (4214808).

Almost surely, 2^57802261 is an apocalyptic number.

It is an amenable number.

57802261 is a deficient number, since it is larger than the sum of its proper divisors (9634667).

57802261 is a wasteful number, since it uses less digits than its factorization.

57802261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3132.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 57802261 is about 7602.7798205656. The cubic root of 57802261 is about 386.6472647650.

The spelling of 57802261 in words is "fifty-seven million, eight hundred two thousand, two hundred sixty-one".