20525051050 has 48 divisors (see below), whose sum is σ = 43642153152. Its totient is φ = 7035264000.

The previous prime is 20525051023. The next prime is 20525051069. The reversal of 20525051050 is 5015052502.

It is a happy number.

It is a super-2 number, since 2×20525051050² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2078625 + ... + 2088475.

It is an arithmetic number, because the mean of its divisors is an integer number (909211524).

Almost surely, 2^20525051050 is an apocalyptic number.

20525051050 is an abundant number, since it is smaller than the sum of its proper divisors (23117102102).

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

20525051050 is a wasteful number, since it uses less digits than its factorization.

20525051050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15823 (or 15818 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 25.

The spelling of 20525051050 in words is "twenty billion, five hundred twenty-five million, fifty-one thousand, fifty".