25439130 has 32 divisors (see below), whose sum is σ = 67838400. Its totient is φ = 6783696.

The previous prime is 25439111. The next prime is 25439149. The reversal of 25439130 is 3193452.

25439130 is a `hidden beast` number, since 2 + 543 + 91 + 30 = 666.

It is an interprime number because it is at equal distance from previous prime (25439111) and next prime (25439149).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 25439094 and 25439103.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 46840 + ... + 47379.

It is an arithmetic number, because the mean of its divisors is an integer number (2119950).

Almost surely, 2^25439130 is an apocalyptic number.

25439130 is an abundant number, since it is smaller than the sum of its proper divisors (42399270).

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

25439130 is a wasteful number, since it uses less digits than its factorization.

25439130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94235 (or 94229 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 25439130 is about 5043.7218400701. The cubic root of 25439130 is about 294.1038783280.

The spelling of 25439130 in words is "twenty-five million, four hundred thirty-nine thousand, one hundred thirty".