57503109 has 16 divisors (see below), whose sum is σ = 79478784. Its totient is φ = 36942000.

The previous prime is 57503099. The next prime is 57503203. The reversal of 57503109 is 90130575.

It is a happy number.

It is not a de Polignac number, because 57503109 - 2⁴ = 57503093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57503209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23284 + ... + 25634.

It is an arithmetic number, because the mean of its divisors is an integer number (4967424).

Almost surely, 2^57503109 is an apocalyptic number.

It is an amenable number.

57503109 is a deficient number, since it is larger than the sum of its proper divisors (21975675).

57503109 is a wasteful number, since it uses less digits than its factorization.

57503109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2648.

The product of its (nonzero) digits is 4725, while the sum is 30.

The square root of 57503109 is about 7583.0804426697. The cubic root of 57503109 is about 385.9790877912.

The spelling of 57503109 in words is "fifty-seven million, five hundred three thousand, one hundred nine".