25434552 has 64 divisors (see below), whose sum is σ = 74712960. Its totient is φ = 7113600.

The previous prime is 25434551. The next prime is 25434553. The reversal of 25434552 is 25543452.

It is an interprime number because it is at equal distance from previous prime (25434551) and next prime (25434553).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25434551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274 + ... + 7137.

It is an arithmetic number, because the mean of its divisors is an integer number (1167390).

Almost surely, 2^25434552 is an apocalyptic number.

25434552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25434552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37356480).

25434552 is an abundant number, since it is smaller than the sum of its proper divisors (49278408).

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

25434552 is a wasteful number, since it uses less digits than its factorization.

25434552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7444 (or 7440 counting only the distinct ones).

The product of its digits is 24000, while the sum is 30.

The square root of 25434552 is about 5043.2679881204. The cubic root of 25434552 is about 294.0862350578.

Subtracting 25434552 from its reverse (25543452), we obtain a square (108900 = 330²).

The spelling of 25434552 in words is "twenty-five million, four hundred thirty-four thousand, five hundred fifty-two".