25142292 has 72 divisors (see below), whose sum is σ = 75841920. Its totient is φ = 7182000.

The previous prime is 25142287. The next prime is 25142297. The reversal of 25142292 is 29224152.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25142287) and next prime (25142297).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25142297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2917 + ... + 7667.

It is an arithmetic number, because the mean of its divisors is an integer number (1053360).

Almost surely, 2^25142292 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25142292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37920960).

25142292 is an abundant number, since it is smaller than the sum of its proper divisors (50699628).

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

25142292 is a wasteful number, since it uses less digits than its factorization.

25142292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4778 (or 4763 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 25142292 is about 5014.2090104023. The cubic root of 25142292 is about 292.9554770883.

The spelling of 25142292 in words is "twenty-five million, one hundred forty-two thousand, two hundred ninety-two".