25334520 has 64 divisors (see below), whose sum is σ = 77271840. Its totient is φ = 6643200.

The previous prime is 25334503. The next prime is 25334521. The reversal of 25334520 is 2543352.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25334521) 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, 5590 + ... + 9050.

Almost surely, 2^25334520 is an apocalyptic number.

25334520 is a gapful number since it is divisible by the number (20) 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 25334520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38635920).

25334520 is an abundant number, since it is smaller than the sum of its proper divisors (51937320).

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

25334520 is a wasteful number, since it uses less digits than its factorization.

25334520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3536 (or 3532 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 25334520 is about 5033.3408388465. The cubic root of 25334520 is about 293.7001895322.

Adding to 25334520 its reverse (2543352), we get a palindrome (27877872).

The spelling of 25334520 in words is "twenty-five million, three hundred thirty-four thousand, five hundred twenty".