40515085425 has 24 divisors (see below), whose sum is σ = 67434523200. Its totient is φ = 21463019200.

The previous prime is 40515085399. The next prime is 40515085439. The reversal of 40515085425 is 52458051504.

40515085425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40515085425 - 2⁵ = 40515085393 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1801581 + ... + 1823930.

It is an arithmetic number, because the mean of its divisors is an integer number (2809771800).

Almost surely, 2^40515085425 is an apocalyptic number.

It is an amenable number.

40515085425 is a deficient number, since it is larger than the sum of its proper divisors (26919437775).

40515085425 is a wasteful number, since it uses less digits than its factorization.

40515085425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3625673 (or 3625668 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 39.

The spelling of 40515085425 in words is "forty billion, five hundred fifteen million, eighty-five thousand, four hundred twenty-five".