20233525530 has 32 divisors (see below), whose sum is σ = 48615272064. Its totient is φ = 5389516736.

The previous prime is 20233525519. The next prime is 20233525537. The reversal of 20233525530 is 3552533202.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (20233525537) 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, 353577 + ... + 406796.

It is an arithmetic number, because the mean of its divisors is an integer number (1519227252).

Almost surely, 2^20233525530 is an apocalyptic number.

20233525530 is an abundant number, since it is smaller than the sum of its proper divisors (28381746534).

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

20233525530 is a wasteful number, since it uses less digits than its factorization.

20233525530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761270.

The product of its (nonzero) digits is 27000, while the sum is 30.

The spelling of 20233525530 in words is "twenty billion, two hundred thirty-three million, five hundred twenty-five thousand, five hundred thirty".