40537577 has 2 divisors, whose sum is σ = 40537578. Its totient is φ = 40537576.

The previous prime is 40537559. The next prime is 40537579. The reversal of 40537577 is 77573504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27258841 + 13278736 = 5221^2 + 3644^2 .

It is a cyclic number.

It is not a de Polignac number, because 40537577 - 2¹⁰ = 40536553 is a prime.

Together with 40537579, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40537577.

It is not a weakly prime, because it can be changed into another prime (40537579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20268788 + 20268789.

It is an arithmetic number, because the mean of its divisors is an integer number (20268789).

Almost surely, 2^40537577 is an apocalyptic number.

It is an amenable number.

40537577 is a deficient number, since it is larger than the sum of its proper divisors (1).

40537577 is an equidigital number, since it uses as much as digits as its factorization.

40537577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102900, while the sum is 38.

The square root of 40537577 is about 6366.9126741302. The cubic root of 40537577 is about 343.5204496314.

It can be divided in two parts, 40537 and 577, that added together give a palindrome (41114).

The spelling of 40537577 in words is "forty million, five hundred thirty-seven thousand, five hundred seventy-seven".