57145520505 has 16 divisors (see below), whose sum is σ = 91535935104. Its totient is φ = 30443243520.

The previous prime is 57145520479. The next prime is 57145520507. The reversal of 57145520505 is 50502554175.

It is not a de Polignac number, because 57145520505 - 2¹⁰ = 57145519481 is a prime.

It is a super-2 number, since 2×57145520505² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57145520507) 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 15 ways as a sum of consecutive naturals, for example, 2134216 + ... + 2160825.

It is an arithmetic number, because the mean of its divisors is an integer number (5720995944).

Almost surely, 2^57145520505 is an apocalyptic number.

It is an amenable number.

57145520505 is a deficient number, since it is larger than the sum of its proper divisors (34390414599).

57145520505 is a wasteful number, since it uses less digits than its factorization.

57145520505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4295936.

The product of its (nonzero) digits is 175000, while the sum is 39.

The spelling of 57145520505 in words is "fifty-seven billion, one hundred forty-five million, five hundred twenty thousand, five hundred five".