40155354025 has 6 divisors (see below), whose sum is σ = 49792639022. Its totient is φ = 32124283200.

The previous prime is 40155353983. The next prime is 40155354037. The reversal of 40155354025 is 52045355104.

It can be written as a sum of positive squares in 3 ways, for example, as 3481 + 40155350544 = 59^2 + 200388^2 .

It is a de Polignac number, because none of the positive numbers 2^k-40155354025 is a prime.

It is a super-2 number, since 2×40155354025² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 803107056 + ... + 803107105.

Almost surely, 2^40155354025 is an apocalyptic number.

It is an amenable number.

40155354025 is a deficient number, since it is larger than the sum of its proper divisors (9637284997).

40155354025 is a wasteful number, since it uses less digits than its factorization.

40155354025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606214171 (or 1606214166 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 34.

The spelling of 40155354025 in words is "forty billion, one hundred fifty-five million, three hundred fifty-four thousand, twenty-five".