40250432545 has 4 divisors (see below), whose sum is σ = 48300519060. Its totient is φ = 32200346032.

The previous prime is 40250432491. The next prime is 40250432557. The reversal of 40250432545 is 54523405204.

40250432545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12640954624 + 27609477921 = 112432^2 + 166161^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40250432545 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40250432545.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4025043250 + ... + 4025043259.

It is an arithmetic number, because the mean of its divisors is an integer number (12075129765).

Almost surely, 2^40250432545 is an apocalyptic number.

It is an amenable number.

40250432545 is a deficient number, since it is larger than the sum of its proper divisors (8050086515).

40250432545 is an equidigital number, since it uses as much as digits as its factorization.

40250432545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8050086514.

The product of its (nonzero) digits is 96000, while the sum is 34.

Adding to 40250432545 its reverse (54523405204), we get a palindrome (94773837749).

The spelling of 40250432545 in words is "forty billion, two hundred fifty million, four hundred thirty-two thousand, five hundred forty-five".