25628190 has 32 divisors (see below), whose sum is σ = 70295040. Its totient is φ = 5857824.

The previous prime is 25628177. The next prime is 25628201. The reversal of 25628190 is 9182652.

It is a super-2 number, since 2×25628190² = 1313608245352200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60810 + ... + 61229.

It is an arithmetic number, because the mean of its divisors is an integer number (2196720).

Almost surely, 2^25628190 is an apocalyptic number.

25628190 is an abundant number, since it is smaller than the sum of its proper divisors (44666850).

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

25628190 is a wasteful number, since it uses less digits than its factorization.

25628190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122056.

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

The square root of 25628190 is about 5062.4292587650. The cubic root of 25628190 is about 294.8306602572.

The spelling of 25628190 in words is "twenty-five million, six hundred twenty-eight thousand, one hundred ninety".