57220152 has 32 divisors (see below), whose sum is σ = 156055680. Its totient is φ = 17339360.

The previous prime is 57220151. The next prime is 57220157. The reversal of 57220152 is 25102275.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57220151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108108 + ... + 108635.

It is an arithmetic number, because the mean of its divisors is an integer number (4876740).

Almost surely, 2^57220152 is an apocalyptic number.

It is an amenable number.

57220152 is an abundant number, since it is smaller than the sum of its proper divisors (98835528).

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

57220152 is a wasteful number, since it uses less digits than its factorization.

57220152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216763 (or 216759 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 57220152 is about 7564.4003066998. The cubic root of 57220152 is about 385.3449474941.

The spelling of 57220152 in words is "fifty-seven million, two hundred twenty thousand, one hundred fifty-two".