625068820 has 12 divisors (see below), whose sum is σ = 1312644564. Its totient is φ = 250027520.

The previous prime is 625068791. The next prime is 625068823. The reversal of 625068820 is 28860526.

It can be written as a sum of positive squares in 2 ways, for example, as 304014096 + 321054724 = 17436^2 + 17918^2 .

It is a super-2 number, since 2×625068820² = 781422059472384800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 625068820.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625068823) 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, 15626701 + ... + 15626740.

It is an arithmetic number, because the mean of its divisors is an integer number (109387047).

Almost surely, 2^625068820 is an apocalyptic number.

It is an amenable number.

625068820 is an abundant number, since it is smaller than the sum of its proper divisors (687575744).

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

625068820 is a wasteful number, since it uses less digits than its factorization.

625068820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31253450 (or 31253448 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 625068820 is about 25001.3763621125. The cubic root of 625068820 is about 855.0193536652.

The spelling of 625068820 in words is "six hundred twenty-five million, sixty-eight thousand, eight hundred twenty".