57503512069 has 4 divisors (see below), whose sum is σ = 57518151660. Its totient is φ = 57488872480.

The previous prime is 57503512067. The next prime is 57503512081. The reversal of 57503512069 is 96021530575.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24731651169 + 32771860900 = 157263^2 + 181030^2 .

It is a cyclic number.

It is not a de Polignac number, because 57503512069 - 2¹ = 57503512067 is a prime.

It is a super-2 number, since 2×57503512069² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57503512067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7313902 + ... + 7321759.

It is an arithmetic number, because the mean of its divisors is an integer number (14379537915).

Almost surely, 2^57503512069 is an apocalyptic number.

It is an amenable number.

57503512069 is a deficient number, since it is larger than the sum of its proper divisors (14639591).

57503512069 is a wasteful number, since it uses less digits than its factorization.

57503512069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14639590.

The product of its (nonzero) digits is 283500, while the sum is 43.

The spelling of 57503512069 in words is "fifty-seven billion, five hundred three million, five hundred twelve thousand, sixty-nine".