20510232004 has 12 divisors (see below), whose sum is σ = 36248282028. Its totient is φ = 10153580000.

The previous prime is 20510231981. The next prime is 20510232053. The reversal of 20510232004 is 40023201502.

It can be written as a sum of positive squares in 2 ways, for example, as 19813377600 + 696854404 = 140760^2 + 26398^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25383547 + ... + 25384354.

It is an arithmetic number, because the mean of its divisors is an integer number (3020690169).

Almost surely, 2^20510232004 is an apocalyptic number.

It is an amenable number.

20510232004 is a deficient number, since it is larger than the sum of its proper divisors (15738050024).

20510232004 is a wasteful number, since it uses less digits than its factorization.

20510232004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50768006 (or 50768004 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

Adding to 20510232004 its reverse (40023201502), we get a palindrome (60533433506).

The spelling of 20510232004 in words is "twenty billion, five hundred ten million, two hundred thirty-two thousand, four".