40668125525 has 6 divisors (see below), whose sum is σ = 50428475682. Its totient is φ = 32534500400.

The previous prime is 40668125507. The next prime is 40668125581. The reversal of 40668125525 is 52552186604.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3169352209 + 37498773316 = 56297^2 + 193646^2 .

It is not a de Polignac number, because 40668125525 - 2⁸ = 40668125269 is a prime.

It is a Duffinian number.

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, 813362486 + ... + 813362535.

It is an arithmetic number, because the mean of its divisors is an integer number (8404745947).

Almost surely, 2^40668125525 is an apocalyptic number.

It is an amenable number.

40668125525 is a deficient number, since it is larger than the sum of its proper divisors (9760350157).

40668125525 is a wasteful number, since it uses less digits than its factorization.

40668125525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626725031 (or 1626725026 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 44.

The spelling of 40668125525 in words is "forty billion, six hundred sixty-eight million, one hundred twenty-five thousand, five hundred twenty-five".