57626109 has 12 divisors (see below), whose sum is σ = 86857056. Its totient is φ = 36746952.

The previous prime is 57626087. The next prime is 57626111. The reversal of 57626109 is 90162675.

It is not a de Polignac number, because 57626109 - 2²³ = 49237501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57626119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138987 + ... + 139400.

It is an arithmetic number, because the mean of its divisors is an integer number (7238088).

Almost surely, 2^57626109 is an apocalyptic number.

It is an amenable number.

57626109 is a deficient number, since it is larger than the sum of its proper divisors (29230947).

57626109 is a wasteful number, since it uses less digits than its factorization.

57626109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278416 (or 278413 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 57626109 is about 7591.1862709329. The cubic root of 57626109 is about 386.2540967926.

The spelling of 57626109 in words is "fifty-seven million, six hundred twenty-six thousand, one hundred nine".