25190628 has 12 divisors (see below), whose sum is σ = 58778160. Its totient is φ = 8396872.

The previous prime is 25190603. The next prime is 25190629. The reversal of 25190628 is 82609152.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (25190629) 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, 1049598 + ... + 1049621.

It is an arithmetic number, because the mean of its divisors is an integer number (4898180).

Almost surely, 2^25190628 is an apocalyptic number.

It is an amenable number.

25190628 is an abundant number, since it is smaller than the sum of its proper divisors (33587532).

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

25190628 is a wasteful number, since it uses less digits than its factorization.

25190628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099226 (or 2099224 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 25190628 is about 5019.0265988536. The cubic root of 25190628 is about 293.1430923256.

It can be divided in two parts, 25 and 190628, that added together give a triangular number (190653 = T₆₁₇).

The spelling of 25190628 in words is "twenty-five million, one hundred ninety thousand, six hundred twenty-eight".