25532400022 has 8 divisors (see below), whose sum is σ = 38299558536. Its totient is φ = 12765880512.

The previous prime is 25532400001. The next prime is 25532400029. The reversal of 25532400022 is 22000423552.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 25532400022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25532400029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42708 + ... + 229975.

It is an arithmetic number, because the mean of its divisors is an integer number (4787444817).

Almost surely, 2^25532400022 is an apocalyptic number.

25532400022 is a deficient number, since it is larger than the sum of its proper divisors (12767158514).

25532400022 is a wasteful number, since it uses less digits than its factorization.

25532400022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319502.

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

Adding to 25532400022 its reverse (22000423552), we get a palindrome (47532823574).

The spelling of 25532400022 in words is "twenty-five billion, five hundred thirty-two million, four hundred thousand, twenty-two".