57069765 has 64 divisors (see below), whose sum is σ = 109105920. Its totient is φ = 28553472.

The previous prime is 57069751. The next prime is 57069769. The reversal of 57069765 is 56796075.

It is a happy number.

57069765 is a `hidden beast` number, since 570 + 6 + 9 + 76 + 5 = 666.

57069765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57069765 - 2⁷ = 57069637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 57069765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57069769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 185742 + ... + 186048.

It is an arithmetic number, because the mean of its divisors is an integer number (1704780).

Almost surely, 2^57069765 is an apocalyptic number.

It is an amenable number.

57069765 is a deficient number, since it is larger than the sum of its proper divisors (52036155).

57069765 is an equidigital number, since it uses as much as digits as its factorization.

57069765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 396900, while the sum is 45.

The square root of 57069765 is about 7554.4533223788. The cubic root of 57069765 is about 385.0070612074.

The spelling of 57069765 in words is "fifty-seven million, sixty-nine thousand, seven hundred sixty-five".