22525434140 has 48 divisors (see below), whose sum is σ = 51646533120. Its totient is φ = 8184271680.

The previous prime is 22525434091. The next prime is 22525434181. The reversal of 22525434140 is 4143452522.

It is a junction number, because it is equal to n+sod(n) for n = 22525434097 and 22525434106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227201 + ... + 310919.

It is an arithmetic number, because the mean of its divisors is an integer number (1075969440).

Almost surely, 2^22525434140 is an apocalyptic number.

22525434140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22525434140 is an abundant number, since it is smaller than the sum of its proper divisors (29121098980).

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

22525434140 is a wasteful number, since it uses less digits than its factorization.

22525434140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84962 (or 84960 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 22525434140 its reverse (4143452522), we get a palindrome (26668886662).

The spelling of 22525434140 in words is "twenty-two billion, five hundred twenty-five million, four hundred thirty-four thousand, one hundred forty".