40404026525 has 6 divisors (see below), whose sum is σ = 50100992922. Its totient is φ = 32323221200.

The previous prime is 40404026479. The next prime is 40404026563. The reversal of 40404026525 is 52562040404.

It can be written as a sum of positive squares in 3 ways, for example, as 1096205881 + 39307820644 = 33109^2 + 198262^2 .

It is not a de Polignac number, because 40404026525 - 2⁶ = 40404026461 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40404026491 and 40404026500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 808080506 + ... + 808080555.

It is an arithmetic number, because the mean of its divisors is an integer number (8350165487).

Almost surely, 2^40404026525 is an apocalyptic number.

It is an amenable number.

40404026525 is a deficient number, since it is larger than the sum of its proper divisors (9696966397).

40404026525 is a wasteful number, since it uses less digits than its factorization.

40404026525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616161071 (or 1616161066 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 40404026525 its reverse (52562040404), we get a palindrome (92966066929).

The spelling of 40404026525 in words is "forty billion, four hundred four million, twenty-six thousand, five hundred twenty-five".