625857533801 has 12 divisors (see below), whose sum is σ = 652064492352. Its totient is φ = 600657684144.

The previous prime is 625857533767. The next prime is 625857533809. The reversal of 625857533801 is 108335758526.

It is not a de Polignac number, because 625857533801 - 2²² = 625853339497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625857533809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2087645 + ... + 2368538.

It is an arithmetic number, because the mean of its divisors is an integer number (54338707696).

Almost surely, 2^625857533801 is an apocalyptic number.

It is an amenable number.

625857533801 is a deficient number, since it is larger than the sum of its proper divisors (26206958551).

625857533801 is a wasteful number, since it uses less digits than its factorization.

625857533801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4456408 (or 4456379 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 53.

The spelling of 625857533801 in words is "six hundred twenty-five billion, eight hundred fifty-seven million, five hundred thirty-three thousand, eight hundred one".