625536 has 64 divisors (see below), whose sum is σ = 1856400. Its totient is φ = 207360.

The previous prime is 625529. The next prime is 625543. The reversal of 625536 is 635526.

625536 is a `hidden beast` number, since 625 + 5 + 36 = 666.

It is an interprime number because it is at equal distance from previous prime (625529) and next prime (625543).

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

625536 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3366 + ... + 3546.

2⁶²⁵⁵³⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 625536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (928200).

625536 is an abundant number, since it is smaller than the sum of its proper divisors (1230864).

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

625536 is a wasteful number, since it uses less digits than its factorization.

625536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 186 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 625536 is about 790.9083385576. The cubic root of 625536 is about 85.5232316064.

The spelling of 625536 in words is "six hundred twenty-five thousand, five hundred thirty-six".