57506765 has 8 divisors (see below), whose sum is σ = 69641880. Its totient is φ = 45582912.

The previous prime is 57506759. The next prime is 57506783. The reversal of 57506765 is 56760575.

It can be written as a sum of positive squares in 4 ways, for example, as 11957764 + 45549001 = 3458^2 + 6749^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57506765 - 2¹⁰ = 57505741 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52214 + ... + 53303.

It is an arithmetic number, because the mean of its divisors is an integer number (8705235).

Almost surely, 2^57506765 is an apocalyptic number.

It is an amenable number.

57506765 is a deficient number, since it is larger than the sum of its proper divisors (12135115).

57506765 is a wasteful number, since it uses less digits than its factorization.

57506765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105631.

The product of its (nonzero) digits is 220500, while the sum is 41.

The square root of 57506765 is about 7583.3215018223. The cubic root of 57506765 is about 385.9872676946.

The spelling of 57506765 in words is "fifty-seven million, five hundred six thousand, seven hundred sixty-five".