625020972491 has 8 divisors (see below), whose sum is σ = 627439899600. Its totient is φ = 622602752800.

The previous prime is 625020972481. The next prime is 625020972497. The reversal of 625020972491 is 194279020526.

It is a happy number.

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 625020972491 - 2¹⁰ = 625020971467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625020972497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1629200 + ... + 1975938.

It is an arithmetic number, because the mean of its divisors is an integer number (78429987450).

Almost surely, 2^625020972491 is an apocalyptic number.

625020972491 is a deficient number, since it is larger than the sum of its proper divisors (2418927109).

625020972491 is a wasteful number, since it uses less digits than its factorization.

625020972491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353709.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 625020972491 in words is "six hundred twenty-five billion, twenty million, nine hundred seventy-two thousand, four hundred ninety-one".