625001364 has 72 divisors (see below), whose sum is σ = 1729363272. Its totient is φ = 189146880.

The previous prime is 625001339. The next prime is 625001389. The reversal of 625001364 is 463100526.

625001364 is a `hidden beast` number, since 625 + 0 + 0 + 1 + 36 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (625001339) and next prime (625001389).

It can be written as a sum of positive squares in 4 ways, for example, as 501264 + 624500100 = 708^2 + 24990^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17602 + ... + 39494.

Almost surely, 2^625001364 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 625001364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (864681636).

625001364 is an abundant number, since it is smaller than the sum of its proper divisors (1104361908).

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

625001364 is a wasteful number, since it uses less digits than its factorization.

625001364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21977 (or 21972 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 625001364 is about 25000.0272799851. The cubic root of 625001364 is about 854.9885953131.

The spelling of 625001364 in words is "six hundred twenty-five million, one thousand, three hundred sixty-four".