625513404 has 12 divisors (see below), whose sum is σ = 1459531304. Its totient is φ = 208504464.

The previous prime is 625513403. The next prime is 625513409. The reversal of 625513404 is 404315526.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625513403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26063047 + ... + 26063070.

Almost surely, 2^625513404 is an apocalyptic number.

It is an amenable number.

625513404 is an abundant number, since it is smaller than the sum of its proper divisors (834017900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

625513404 is a wasteful number, since it uses less digits than its factorization.

625513404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52126124 (or 52126122 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 625513404 is about 25010.2659721963. The cubic root of 625513404 is about 855.2220181959. Note that the first 3 decimals are identical.

It can be divided in two parts, 625513 and 404, that multiplied together give a palindrome (252707252).

The spelling of 625513404 in words is "six hundred twenty-five million, five hundred thirteen thousand, four hundred four".