25533492 has 48 divisors (see below), whose sum is σ = 63927360. Its totient is φ = 7907328.

The previous prime is 25533481. The next prime is 25533493. The reversal of 25533492 is 29433552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25533493) 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 15 ways as a sum of consecutive naturals, for example, 11028 + ... + 13140.

It is an arithmetic number, because the mean of its divisors is an integer number (1331820).

Almost surely, 2^25533492 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 25533492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31963680).

25533492 is an abundant number, since it is smaller than the sum of its proper divisors (38393868).

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

25533492 is a wasteful number, since it uses less digits than its factorization.

25533492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2192 (or 2190 counting only the distinct ones).

The product of its digits is 32400, while the sum is 33.

The square root of 25533492 is about 5053.0675831617. The cubic root of 25533492 is about 294.4670719159.

The spelling of 25533492 in words is "twenty-five million, five hundred thirty-three thousand, four hundred ninety-two".