25190172 has 36 divisors (see below), whose sum is σ = 72772336. Its totient is φ = 7197120.

The previous prime is 25190171. The next prime is 25190173. The reversal of 25190172 is 27109152.

It is an interprime number because it is at equal distance from previous prime (25190171) and next prime (25190173).

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25190171) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 49729 + ... + 50232.

Almost surely, 2^25190172 is an apocalyptic number.

It is an amenable number.

25190172 is an abundant number, since it is smaller than the sum of its proper divisors (47582164).

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

25190172 is a wasteful number, since it uses less digits than its factorization.

25190172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99978 (or 99973 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 25190172 is about 5018.9811715128. The cubic root of 25190172 is about 293.1413234924.

The spelling of 25190172 in words is "twenty-five million, one hundred ninety thousand, one hundred seventy-two".