57305545990 has 128 divisors (see below), whose sum is σ = 140863795200. Its totient is φ = 16231004160.

The previous prime is 57305545987. The next prime is 57305545991. The reversal of 57305545990 is 9954550375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57305545991) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 304131 + ... + 455089.

It is an arithmetic number, because the mean of its divisors is an integer number (1100498400).

Almost surely, 2^57305545990 is an apocalyptic number.

57305545990 is an abundant number, since it is smaller than the sum of its proper divisors (83558249210).

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

57305545990 is a wasteful number, since it uses less digits than its factorization.

57305545990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151030.

The product of its (nonzero) digits is 4252500, while the sum is 52.

The spelling of 57305545990 in words is "fifty-seven billion, three hundred five million, five hundred forty-five thousand, nine hundred ninety".