2525223400 has 96 divisors (see below), whose sum is σ = 6719927040. Its totient is φ = 864495360.

The previous prime is 2525223377. The next prime is 2525223403. The reversal of 2525223400 is 43225252.

It is a happy number.

2525223400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (2525223403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1697457 + ... + 1698943.

It is an arithmetic number, because the mean of its divisors is an integer number (69999240).

Almost surely, 2^2525223400 is an apocalyptic number.

2525223400 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 2525223400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3359963520).

2525223400 is an abundant number, since it is smaller than the sum of its proper divisors (4194703640).

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

2525223400 is a wasteful number, since it uses less digits than its factorization.

2525223400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2723 (or 2714 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 2525223400 is about 50251.6009695214. The cubic root of 2525223400 is about 1361.7579990411.

Adding to 2525223400 its reverse (43225252), we get a palindrome (2568448652).

The spelling of 2525223400 in words is "two billion, five hundred twenty-five million, two hundred twenty-three thousand, four hundred".