57611828 has 6 divisors (see below), whose sum is σ = 100820706. Its totient is φ = 28805912.

The previous prime is 57611821. The next prime is 57611831. The reversal of 57611828 is 82811675.

It can be written as a sum of positive squares in only one way, i.e., 29181604 + 28430224 = 5402^2 + 5332^2 .

It is a junction number, because it is equal to n+sod(n) for n = 57611791 and 57611800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57611821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7201475 + ... + 7201482.

It is an arithmetic number, because the mean of its divisors is an integer number (16803451).

Almost surely, 2^57611828 is an apocalyptic number.

It is an amenable number.

57611828 is a deficient number, since it is larger than the sum of its proper divisors (43208878).

57611828 is a wasteful number, since it uses less digits than its factorization.

57611828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14402961 (or 14402959 counting only the distinct ones).

The product of its digits is 26880, while the sum is 38.

The square root of 57611828 is about 7590.2455823247. The cubic root of 57611828 is about 386.2221867748. Note that the first 3 decimals are identical.

The spelling of 57611828 in words is "fifty-seven million, six hundred eleven thousand, eight hundred twenty-eight".