25132428 has 36 divisors (see below), whose sum is σ = 64340640. Its totient is φ = 8270496.

The previous prime is 25132423. The next prime is 25132439. The reversal of 25132428 is 82423152.

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

It is not an unprimeable number, because it can be changed into a prime (25132423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1575 + ... + 7262.

It is an arithmetic number, because the mean of its divisors is an integer number (1787240).

Almost surely, 2^25132428 is an apocalyptic number.

It is an amenable number.

25132428 is an abundant number, since it is smaller than the sum of its proper divisors (39208212).

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

25132428 is a wasteful number, since it uses less digits than its factorization.

25132428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8926 (or 8921 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 25132428 is about 5013.2253091199. The cubic root of 25132428 is about 292.9171606291.

The spelling of 25132428 in words is "twenty-five million, one hundred thirty-two thousand, four hundred twenty-eight".