22515501025430 has 64 divisors (see below), whose sum is σ = 49058726146560. Its totient is φ = 7263052998144.

The previous prime is 22515501025403. The next prime is 22515501025453. The reversal of 22515501025430 is 3452010551522.

It is a happy number.

It is a super-2 number, since 2×22515501025430² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 333161 + ... + 6718779.

It is an arithmetic number, because the mean of its divisors is an integer number (766542596040).

Almost surely, 2^{22515501025430} is an apocalyptic number.

22515501025430 is an abundant number, since it is smaller than the sum of its proper divisors (26543225121130).

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

22515501025430 is a wasteful number, since it uses less digits than its factorization.

22515501025430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6388613.

The product of its (nonzero) digits is 60000, while the sum is 35.

Adding to 22515501025430 its reverse (3452010551522), we get a palindrome (25967511576952).

The spelling of 22515501025430 in words is "twenty-two trillion, five hundred fifteen billion, five hundred one million, twenty-five thousand, four hundred thirty".