20615322252 has 48 divisors (see below), whose sum is σ = 55101251072. Its totient is φ = 5876478720.

The previous prime is 20615322251. The next prime is 20615322281. The reversal of 20615322252 is 25222351602.

It is not an unprimeable number, because it can be changed into a prime (20615322251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247024 + ... + 319767.

Almost surely, 2^20615322252 is an apocalyptic number.

It is an amenable number.

20615322252 is an abundant number, since it is smaller than the sum of its proper divisors (34485928820).

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

20615322252 is a wasteful number, since it uses less digits than its factorization.

20615322252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567238 (or 567236 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 20615322252 its reverse (25222351602), we get a palindrome (45837673854).

The spelling of 20615322252 in words is "twenty billion, six hundred fifteen million, three hundred twenty-two thousand, two hundred fifty-two".