20253540104 has 32 divisors (see below), whose sum is σ = 45953412480. Its totient is φ = 8169494784.

The previous prime is 20253540101. The next prime is 20253540127. The reversal of 20253540104 is 40104535202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20253540101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10636412 + ... + 10638315.

It is an arithmetic number, because the mean of its divisors is an integer number (1436044140).

Almost surely, 2^20253540104 is an apocalyptic number.

It is an amenable number.

20253540104 is an abundant number, since it is smaller than the sum of its proper divisors (25699872376).

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

20253540104 is a wasteful number, since it uses less digits than its factorization.

20253540104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21274757 (or 21274753 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The spelling of 20253540104 in words is "twenty billion, two hundred fifty-three million, five hundred forty thousand, one hundred four".