64692755 has 8 divisors (see below), whose sum is σ = 78385632. Its totient is φ = 51251328.

The previous prime is 64692751. The next prime is 64692781. The reversal of 64692755 is 55729646.

64692755 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 64692755 - 2² = 64692751 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64692751) 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 7 ways as a sum of consecutive naturals, for example, 62294 + ... + 63323.

It is an arithmetic number, because the mean of its divisors is an integer number (9798204).

Almost surely, 2^64692755 is an apocalyptic number.

64692755 is a deficient number, since it is larger than the sum of its proper divisors (13692877).

64692755 is a wasteful number, since it uses less digits than its factorization.

64692755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125725.

The product of its digits is 453600, while the sum is 44.

The square root of 64692755 is about 8043.1806519560. The cubic root of 64692755 is about 401.4380633223.

The spelling of 64692755 in words is "sixty-four million, six hundred ninety-two thousand, seven hundred fifty-five".