765625455 has 24 divisors (see below), whose sum is σ = 1516668192. Its totient is φ = 350000064.

The previous prime is 765625451. The next prime is 765625499. The reversal of 765625455 is 554526567.

765625455 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 765625455 - 2² = 765625451 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 765625455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (765625451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1214964 + ... + 1215593.

It is an arithmetic number, because the mean of its divisors is an integer number (63194508).

Almost surely, 2^765625455 is an apocalyptic number.

765625455 is a deficient number, since it is larger than the sum of its proper divisors (751042737).

765625455 is a wasteful number, since it uses less digits than its factorization.

765625455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2430575 (or 2430572 counting only the distinct ones).

The product of its digits is 1260000, while the sum is 45.

The square root of 765625455 is about 27669.9377483940. The cubic root of 765625455 is about 914.8266087285.

The spelling of 765625455 in words is "seven hundred sixty-five million, six hundred twenty-five thousand, four hundred fifty-five".