625403520 has 192 divisors, whose sum is σ = 2468269440. Its totient is φ = 142940160.

The previous prime is 625403507. The next prime is 625403533. The reversal of 625403520 is 25304526.

625403520 is a `hidden beast` number, since 625 + 4 + 0 + 35 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (625403507) and next prime (625403533).

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×625403520² = 782259125656780800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32565 + ... + 48075.

It is an arithmetic number, because the mean of its divisors is an integer number (12855570).

Almost surely, 2^625403520 is an apocalyptic number.

625403520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 625403520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1234134720).

625403520 is an abundant number, since it is smaller than the sum of its proper divisors (1842865920).

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

625403520 is a wasteful number, since it uses less digits than its factorization.

625403520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15543 (or 15528 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 625403520 is about 25008.0690977932. The cubic root of 625403520 is about 855.1719362850.

The spelling of 625403520 in words is "six hundred twenty-five million, four hundred three thousand, five hundred twenty".