765424125 has 24 divisors (see below), whose sum is σ = 1379806584. Its totient is φ = 408225600.

The previous prime is 765424111. The next prime is 765424151. The reversal of 765424125 is 521424567.

It is a happy number.

765424125 is a `hidden beast` number, since 76 + 542 + 41 + 2 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 123409881 + 642014244 = 11109^2 + 25338^2 .

It is not a de Polignac number, because 765424125 - 2⁴ = 765424109 is a prime.

It is a super-2 number, since 2×765424125² = 1171748182264031250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 765424125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 339064 + ... + 341313.

It is an arithmetic number, because the mean of its divisors is an integer number (57491941).

Almost surely, 2^765424125 is an apocalyptic number.

765424125 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

765424125 is a deficient number, since it is larger than the sum of its proper divisors (614382459).

765424125 is a wasteful number, since it uses less digits than its factorization.

765424125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680398 (or 680385 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 765424125 is about 27666.2994453541. The cubic root of 765424125 is about 914.7464136468.

The spelling of 765424125 in words is "seven hundred sixty-five million, four hundred twenty-four thousand, one hundred twenty-five".