57212650 has 96 divisors (see below), whose sum is σ = 127759680. Its totient is φ = 18816000.

The previous prime is 57212627. The next prime is 57212651. The reversal of 57212650 is 5621275.

It is not an unprimeable number, because it can be changed into a prime (57212651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 271045 + ... + 271255.

It is an arithmetic number, because the mean of its divisors is an integer number (1330830).

Almost surely, 2^57212650 is an apocalyptic number.

57212650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

57212650 is an abundant number, since it is smaller than the sum of its proper divisors (70547030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57212650 is a wasteful number, since it uses less digits than its factorization.

57212650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280 (or 275 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 57212650 is about 7563.9044150491. The cubic root of 57212650 is about 385.3281062004.

The spelling of 57212650 in words is "fifty-seven million, two hundred twelve thousand, six hundred fifty".