57221188150 has 72 divisors (see below), whose sum is σ = 124096197960. Its totient is φ = 19573021440.

The previous prime is 57221188081. The next prime is 57221188159. The reversal of 57221188150 is 5188112275.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57221188159) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1033881 + ... + 1087819.

It is an arithmetic number, because the mean of its divisors is an integer number (1723558305).

Almost surely, 2^57221188150 is an apocalyptic number.

57221188150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

57221188150 is an abundant number, since it is smaller than the sum of its proper divisors (66875009810).

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

57221188150 is a wasteful number, since it uses less digits than its factorization.

57221188150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54398 (or 54386 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 40.

The spelling of 57221188150 in words is "fifty-seven billion, two hundred twenty-one million, one hundred eighty-eight thousand, one hundred fifty".