25106432 has 96 divisors (see below), whose sum is σ = 57788640. Its totient is φ = 10813440.

The previous prime is 25106383. The next prime is 25106509. The reversal of 25106432 is 23460152.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 25106398 and 25106407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612332 + ... + 612372.

It is an arithmetic number, because the mean of its divisors is an integer number (601965).

Almost surely, 2^25106432 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 25106432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28894320).

25106432 is an abundant number, since it is smaller than the sum of its proper divisors (32682208).

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

25106432 is a wasteful number, since it uses less digits than its factorization.

25106432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 25106432 is about 5010.6318962782. The cubic root of 25106432 is about 292.8161317717.

Adding to 25106432 its reverse (23460152), we get a palindrome (48566584).

The spelling of 25106432 in words is "twenty-five million, one hundred six thousand, four hundred thirty-two".