25002220450 has 96 divisors (see below), whose sum is σ = 50459770368. Its totient is φ = 9182208000.

The previous prime is 25002220447. The next prime is 25002220459. The reversal of 25002220450 is 5402220052.

It is a happy number.

It is a super-2 number, since 2×25002220450² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25002220459) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5851815 + ... + 5856085.

It is an arithmetic number, because the mean of its divisors is an integer number (525622608).

Almost surely, 2^25002220450 is an apocalyptic number.

25002220450 is an abundant number, since it is smaller than the sum of its proper divisors (25457549918).

25002220450 is a wasteful number, since it uses less digits than its factorization.

25002220450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4468 (or 4463 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The spelling of 25002220450 in words is "twenty-five billion, two million, two hundred twenty thousand, four hundred fifty".