25622223210 has 128 divisors (see below), whose sum is σ = 69286026240. Its totient is φ = 6737193792.

The previous prime is 25622223191. The next prime is 25622223227. The reversal of 25622223210 is 1232222652.

25622223210 is a `hidden beast` number, since 2 + 5 + 622 + 2 + 2 + 32 + 1 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6556077 + ... + 6559983.

It is an arithmetic number, because the mean of its divisors is an integer number (541297080).

Almost surely, 2^25622223210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25622223210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34643013120).

25622223210 is an abundant number, since it is smaller than the sum of its proper divisors (43663803030).

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

25622223210 is a wasteful number, since it uses less digits than its factorization.

25622223210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4257 (or 4251 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 25622223210 its reverse (1232222652), we get a palindrome (26854445862).

It can be divided in two parts, 25622 and 223210, that added together give a 5-th power (248832 = 12⁵).

The spelling of 25622223210 in words is "twenty-five billion, six hundred twenty-two million, two hundred twenty-three thousand, two hundred ten".