20265253652 has 24 divisors (see below), whose sum is σ = 40601520960. Its totient is φ = 8669891520.

The previous prime is 20265253649. The next prime is 20265253661. The reversal of 20265253652 is 25635256202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 617777 + ... + 649752.

It is an arithmetic number, because the mean of its divisors is an integer number (1691730040).

Almost surely, 2^20265253652 is an apocalyptic number.

It is an amenable number.

20265253652 is an abundant number, since it is smaller than the sum of its proper divisors (20336267308).

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

20265253652 is a wasteful number, since it uses less digits than its factorization.

20265253652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268111 (or 1268109 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 38.

The spelling of 20265253652 in words is "twenty billion, two hundred sixty-five million, two hundred fifty-three thousand, six hundred fifty-two".