20440501052 has 6 divisors (see below), whose sum is σ = 35770876848. Its totient is φ = 10220250524.

The previous prime is 20440501049. The next prime is 20440501069. The reversal of 20440501052 is 25010504402.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555062628 + ... + 2555062635.

It is an arithmetic number, because the mean of its divisors is an integer number (5961812808).

Almost surely, 2^20440501052 is an apocalyptic number.

It is an amenable number.

20440501052 is a deficient number, since it is larger than the sum of its proper divisors (15330375796).

20440501052 is a wasteful number, since it uses less digits than its factorization.

20440501052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5110125267 (or 5110125265 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The spelling of 20440501052 in words is "twenty billion, four hundred forty million, five hundred one thousand, fifty-two".