625298520 has 512 divisors, whose sum is σ = 2521497600. Its totient is φ = 120268800.

The previous prime is 625298519. The next prime is 625298533. The reversal of 625298520 is 25892526.

It is a super-2 number, since 2×625298520² = 781996478228380800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 10598251 + ... + 10598309.

It is an arithmetic number, because the mean of its divisors is an integer number (4924800).

Almost surely, 2^625298520 is an apocalyptic number.

625298520 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 625298520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1260748800).

625298520 is an abundant number, since it is smaller than the sum of its proper divisors (1896199080).

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

625298520 is a wasteful number, since it uses less digits than its factorization.

625298520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 625298520 is about 25005.9696872567. The cubic root of 625298520 is about 855.1240748771.

The spelling of 625298520 in words is "six hundred twenty-five million, two hundred ninety-eight thousand, five hundred twenty".