25233642 has 48 divisors (see below), whose sum is σ = 63827712. Its totient is φ = 7054560.

The previous prime is 25233631. The next prime is 25233673. The reversal of 25233642 is 24633252.

Its product of digits (8640) is a multiple of the sum of its prime divisors (4320).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3792 + ... + 8052.

It is an arithmetic number, because the mean of its divisors is an integer number (1329744).

Almost surely, 2^25233642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25233642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31913856).

25233642 is an abundant number, since it is smaller than the sum of its proper divisors (38594070).

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

25233642 is a wasteful number, since it uses less digits than its factorization.

25233642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4323 (or 4320 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 25233642 is about 5023.3098650193. The cubic root of 25233642 is about 293.3098486134.

Adding to 25233642 its reverse (24633252), we get a palindrome (49866894).

The spelling of 25233642 in words is "twenty-five million, two hundred thirty-three thousand, six hundred forty-two".