625800949 has 16 divisors (see below), whose sum is σ = 646859520. Its totient is φ = 605217600.

The previous prime is 625800913. The next prime is 625800979. The reversal of 625800949 is 949008526.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-625800949 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 (625800979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 853387 + ... + 854119.

It is an arithmetic number, because the mean of its divisors is an integer number (40428720).

Almost surely, 2^625800949 is an apocalyptic number.

It is an amenable number.

625800949 is a deficient number, since it is larger than the sum of its proper divisors (21058571).

625800949 is a wasteful number, since it uses less digits than its factorization.

625800949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 625800949 is about 25016.0138511314. The cubic root of 625800949 is about 855.3530450406.

The spelling of 625800949 in words is "six hundred twenty-five million, eight hundred thousand, nine hundred forty-nine".