40138403882525 has 96 divisors (see below), whose sum is σ = 57738018592800. Its totient is φ = 27413854617600.

The previous prime is 40138403882519. The next prime is 40138403882537. The reversal of 40138403882525 is 52528830483104.

It is a happy number.

It can be written as a sum of positive squares in 48 ways, for example, as 39179863021924 + 958540860601 = 6259382^2 + 979051^2 .

It is not a de Polignac number, because 40138403882525 - 2¹² = 40138403878429 is a prime.

It is a super-2 number, since 2×40138403882525² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 360224021 + ... + 360335429.

It is an arithmetic number, because the mean of its divisors is an integer number (601437693675).

Almost surely, 2^{40138403882525} is an apocalyptic number.

It is an amenable number.

40138403882525 is a deficient number, since it is larger than the sum of its proper divisors (17599614710275).

40138403882525 is a wasteful number, since it uses less digits than its factorization.

40138403882525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112579 (or 112574 counting only the distinct ones).

The product of its (nonzero) digits is 7372800, while the sum is 53.

The spelling of 40138403882525 in words is "forty trillion, one hundred thirty-eight billion, four hundred three million, eight hundred eighty-two thousand, five hundred twenty-five".