40652639325 has 36 divisors (see below), whose sum is σ = 77096542068. Its totient is φ = 20406028800.

The previous prime is 40652639323. The next prime is 40652639333. The reversal of 40652639325 is 52393625604.

40652639325 is a `hidden beast` number, since 4 + 0 + 6 + 5 + 2 + 639 + 3 + 2 + 5 = 666.

40652639325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 194937444 + 40457701881 = 13962^2 + 201141^2 .

It is not a de Polignac number, because 40652639325 - 2¹ = 40652639323 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40652639323) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5310246 + ... + 5317895.

It is an arithmetic number, because the mean of its divisors is an integer number (2141570613).

Almost surely, 2^40652639325 is an apocalyptic number.

40652639325 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40652639325 is a deficient number, since it is larger than the sum of its proper divisors (36443902743).

40652639325 is a wasteful number, since it uses less digits than its factorization.

40652639325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10628174 (or 10628166 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 45.

The spelling of 40652639325 in words is "forty billion, six hundred fifty-two million, six hundred thirty-nine thousand, three hundred twenty-five".