57864650 has 12 divisors (see below), whose sum is σ = 107628342. Its totient is φ = 23145840.

The previous prime is 57864649. The next prime is 57864659. The reversal of 57864650 is 5646875.

It can be written as a sum of positive squares in 3 ways, for example, as 23980609 + 33884041 = 4897^2 + 5821^2 .

It is a junction number, because it is equal to n+sod(n) for n = 57864598 and 57864607.

It is not an unprimeable number, because it can be changed into a prime (57864659) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 578597 + ... + 578696.

Almost surely, 2^57864650 is an apocalyptic number.

57864650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

57864650 is a deficient number, since it is larger than the sum of its proper divisors (49763692).

57864650 is a wasteful number, since it uses less digits than its factorization.

57864650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157305 (or 1157300 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 57864650 is about 7606.8817527289. The cubic root of 57864650 is about 386.7863242763.

The spelling of 57864650 in words is "fifty-seven million, eight hundred sixty-four thousand, six hundred fifty".