40043650525 has 24 divisors (see below), whose sum is σ = 51105880800. Its totient is φ = 31102032960.

The previous prime is 40043650489. The next prime is 40043650529. The reversal of 40043650525 is 52505634004.

It is a de Polignac number, because none of the positive numbers 2^k-40043650525 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40043650529) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 385626 + ... + 478324.

It is an arithmetic number, because the mean of its divisors is an integer number (2129411700).

Almost surely, 2^40043650525 is an apocalyptic number.

It is an amenable number.

40043650525 is a deficient number, since it is larger than the sum of its proper divisors (11062230275).

40043650525 is a wasteful number, since it uses less digits than its factorization.

40043650525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93213 (or 93208 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 34.

The spelling of 40043650525 in words is "forty billion, forty-three million, six hundred fifty thousand, five hundred twenty-five".