40875557 has 2 divisors, whose sum is σ = 40875558. Its totient is φ = 40875556.

The previous prime is 40875533. The next prime is 40875589. The reversal of 40875557 is 75557804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22221796 + 18653761 = 4714^2 + 4319^2 .

It is a cyclic number.

It is not a de Polignac number, because 40875557 - 2¹² = 40871461 is a prime.

It is a super-2 number, since 2×40875557² = 3341622320120498, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40871557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20437778 + 20437779.

It is an arithmetic number, because the mean of its divisors is an integer number (20437779).

Almost surely, 2^40875557 is an apocalyptic number.

It is an amenable number.

40875557 is a deficient number, since it is larger than the sum of its proper divisors (1).

40875557 is an equidigital number, since it uses as much as digits as its factorization.

40875557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 196000, while the sum is 41.

The square root of 40875557 is about 6393.3994869709. The cubic root of 40875557 is about 344.4725034104.

The spelling of 40875557 in words is "forty million, eight hundred seventy-five thousand, five hundred fifty-seven".