25053400 has 72 divisors (see below), whose sum is σ = 61653420. Its totient is φ = 9466560.

The previous prime is 25053389. The next prime is 25053401. The reversal of 25053400 is 435052.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25053401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 72027 + ... + 72373.

Almost surely, 2^25053400 is an apocalyptic number.

25053400 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 25053400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30826710).

25053400 is an abundant number, since it is smaller than the sum of its proper divisors (36600020).

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

25053400 is a wasteful number, since it uses less digits than its factorization.

25053400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 25053400 is about 5005.3371514814. The cubic root of 25053400 is about 292.6098158286.

Adding to 25053400 its reverse (435052), we get a palindrome (25488452).

The spelling of 25053400 in words is "twenty-five million, fifty-three thousand, four hundred".