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57225588 = 2237681257
BaseRepresentation
bin1101101001001…
…1000101110100
310222200100202020
43122103011310
5104122204323
65402313140
71263260310
oct332230564
9128610666
1057225588
112a336482
12171b87b0
13bb181c4
147858b40
155055ae3
hex3693174

57225588 has 24 divisors (see below), whose sum is σ = 152601792. Its totient is φ = 16350144.

The previous prime is 57225577. The next prime is 57225593. The reversal of 57225588 is 88552275.

57225588 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340545 + ... + 340712.

It is an arithmetic number, because the mean of its divisors is an integer number (6358408).

Almost surely, 257225588 is an apocalyptic number.

It is an amenable number.

57225588 is an abundant number, since it is smaller than the sum of its proper divisors (95376204).

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

57225588 is a wasteful number, since it uses less digits than its factorization.

57225588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681271 (or 681269 counting only the distinct ones).

The product of its digits is 224000, while the sum is 42.

The square root of 57225588 is about 7564.7596128364. The cubic root of 57225588 is about 385.3571498897.

The spelling of 57225588 in words is "fifty-seven million, two hundred twenty-five thousand, five hundred eighty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 681257 1362514 2043771 2725028 4087542 4768799 8175084 9537598 14306397 19075196 28612794 57225588