625785457 has 8 divisors (see below), whose sum is σ = 684509760. Its totient is φ = 567366960.

The previous prime is 625785451. The next prime is 625785481. The reversal of 625785457 is 754587526.

It is a happy number.

625785457 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 625785457 - 2¹¹ = 625783409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 625785457.

It is not an unprimeable number, because it can be changed into a prime (625785451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72157 + ... + 80362.

It is an arithmetic number, because the mean of its divisors is an integer number (85563720).

Almost surely, 2^625785457 is an apocalyptic number.

It is an amenable number.

625785457 is a deficient number, since it is larger than the sum of its proper divisors (58724303).

625785457 is a wasteful number, since it uses less digits than its factorization.

625785457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152903.

The product of its digits is 2352000, while the sum is 49.

The square root of 625785457 is about 25015.7042075573. The cubic root of 625785457 is about 855.3459867586.

The spelling of 625785457 in words is "six hundred twenty-five million, seven hundred eighty-five thousand, four hundred fifty-seven".