40112557 has 2 divisors, whose sum is σ = 40112558. Its totient is φ = 40112556.

The previous prime is 40112533. The next prime is 40112599. The reversal of 40112557 is 75521104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39765636 + 346921 = 6306^2 + 589^2 .

It is a cyclic number.

It is not a de Polignac number, because 40112557 - 2¹⁵ = 40079789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40112257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20056278 + 20056279.

It is an arithmetic number, because the mean of its divisors is an integer number (20056279).

Almost surely, 2^40112557 is an apocalyptic number.

It is an amenable number.

40112557 is a deficient number, since it is larger than the sum of its proper divisors (1).

40112557 is an equidigital number, since it uses as much as digits as its factorization.

40112557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 40112557 is about 6333.4474814275. The cubic root of 40112557 is about 342.3156718562.

The spelling of 40112557 in words is "forty million, one hundred twelve thousand, five hundred fifty-seven".