625505456 has 20 divisors (see below), whose sum is σ = 1228988304. Its totient is φ = 308347200.

The previous prime is 625505453. The next prime is 625505459. The reversal of 625505456 is 654505526.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (625505453) and next prime (625505459).

It is not an unprimeable number, because it can be changed into a prime (625505453) 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, 274175 + ... + 276446.

Almost surely, 2^625505456 is an apocalyptic number.

It is an amenable number.

625505456 is a deficient number, since it is larger than the sum of its proper divisors (603482848).

625505456 is a wasteful number, since it uses less digits than its factorization.

625505456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550700 (or 550694 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 38.

The square root of 625505456 is about 25010.1070769399. The cubic root of 625505456 is about 855.2183959269.

The spelling of 625505456 in words is "six hundred twenty-five million, five hundred five thousand, four hundred fifty-six".