625381909375 has 12 divisors (see below), whose sum is σ = 781677360072. Its totient is φ = 500305525000.

The previous prime is 625381909367. The next prime is 625381909387. The reversal of 625381909375 is 573909183526.

It is not a de Polignac number, because 625381909375 - 2³ = 625381909367 is a prime.

It is a super-2 number, since 2×625381909375² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100057981 + ... + 100064230.

It is an arithmetic number, because the mean of its divisors is an integer number (65139780006).

Almost surely, 2^625381909375 is an apocalyptic number.

625381909375 is a deficient number, since it is larger than the sum of its proper divisors (156295450697).

625381909375 is an frugal number, since it uses more digits than its factorization.

625381909375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200122236 (or 200122216 counting only the distinct ones).

The product of its (nonzero) digits is 12247200, while the sum is 58.

The spelling of 625381909375 in words is "six hundred twenty-five billion, three hundred eighty-one million, nine hundred nine thousand, three hundred seventy-five".