57645505 has 4 divisors (see below), whose sum is σ = 69174612. Its totient is φ = 46116400.

The previous prime is 57645493. The next prime is 57645517. The reversal of 57645505 is 50554675.

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

It is an interprime number because it is at equal distance from previous prime (57645493) and next prime (57645517).

It can be written as a sum of positive squares in 2 ways, for example, as 25280784 + 32364721 = 5028^2 + 5689^2 .

It is not a de Polignac number, because 57645505 - 2⁵ = 57645473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5764546 + ... + 5764555.

It is an arithmetic number, because the mean of its divisors is an integer number (17293653).

Almost surely, 2^57645505 is an apocalyptic number.

It is an amenable number.

57645505 is a deficient number, since it is larger than the sum of its proper divisors (11529107).

57645505 is a wasteful number, since it uses less digits than its factorization.

57645505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11529106.

The product of its (nonzero) digits is 105000, while the sum is 37.

The square root of 57645505 is about 7592.4636976412. The cubic root of 57645505 is about 386.2974275224.

The spelling of 57645505 in words is "fifty-seven million, six hundred forty-five thousand, five hundred five".