25526430 has 48 divisors (see below), whose sum is σ = 66777984. Its totient is φ = 6765120.

The previous prime is 25526419. The next prime is 25526441. The reversal of 25526430 is 3462552.

It is an interprime number because it is at equal distance from previous prime (25526419) and next prime (25526441).

It is a junction number, because it is equal to n+sod(n) for n = 25526394 and 25526403.

It is a congruent number.

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, 15507 + ... + 17073.

It is an arithmetic number, because the mean of its divisors is an integer number (1391208).

Almost surely, 2^25526430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25526430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33388992).

25526430 is an abundant number, since it is smaller than the sum of its proper divisors (41251554).

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

25526430 is a wasteful number, since it uses less digits than its factorization.

25526430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761 (or 1758 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 25526430 is about 5052.3687513878. The cubic root of 25526430 is about 294.4399217163.

Adding to 25526430 its reverse (3462552), we get a palindrome (28988982).

The spelling of 25526430 in words is "twenty-five million, five hundred twenty-six thousand, four hundred thirty".