625081853 has 4 divisors (see below), whose sum is σ = 681907488. Its totient is φ = 568256220.

The previous prime is 625081843. The next prime is 625081883. The reversal of 625081853 is 358180526.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 625081853 - 2⁴ = 625081837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625081843) 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 3 ways as a sum of consecutive naturals, for example, 28412801 + ... + 28412822.

It is an arithmetic number, because the mean of its divisors is an integer number (170476872).

Almost surely, 2^625081853 is an apocalyptic number.

It is an amenable number.

625081853 is a deficient number, since it is larger than the sum of its proper divisors (56825635).

625081853 is a wasteful number, since it uses less digits than its factorization.

625081853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56825634.

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 625081853 is about 25001.6370064042. The cubic root of 625081853 is about 855.0252961520.

The spelling of 625081853 in words is "six hundred twenty-five million, eighty-one thousand, eight hundred fifty-three".