40025513026 has 4 divisors (see below), whose sum is σ = 60038269542. Its totient is φ = 20012756512.

The previous prime is 40025512957. The next prime is 40025513041. The reversal of 40025513026 is 62031552004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20292287401 + 19733225625 = 142451^2 + 140475^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40025512985 and 40025513003.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006378255 + ... + 10006378258.

Almost surely, 2^40025513026 is an apocalyptic number.

40025513026 is a deficient number, since it is larger than the sum of its proper divisors (20012756516).

40025513026 is a wasteful number, since it uses less digits than its factorization.

40025513026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20012756515.

The product of its (nonzero) digits is 7200, while the sum is 28.

The spelling of 40025513026 in words is "forty billion, twenty-five million, five hundred thirteen thousand, twenty-six".