25625780 has 24 divisors (see below), whose sum is σ = 54010152. Its totient is φ = 10212992.

The previous prime is 25625773. The next prime is 25625837. The reversal of 25625780 is 8752652.

It can be written as a sum of positive squares in 4 ways, for example, as 9012004 + 16613776 = 3002^2 + 4076^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25625780.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3674 + ... + 8046.

It is an arithmetic number, because the mean of its divisors is an integer number (2250423).

Almost surely, 2^25625780 is an apocalyptic number.

25625780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25625780 is an abundant number, since it is smaller than the sum of its proper divisors (28384372).

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

25625780 is a wasteful number, since it uses less digits than its factorization.

25625780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4675 (or 4673 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 25625780 is about 5062.1912251514. The cubic root of 25625780 is about 294.8214182966.

The spelling of 25625780 in words is "twenty-five million, six hundred twenty-five thousand, seven hundred eighty".