40892557 has 2 divisors, whose sum is σ = 40892558. Its totient is φ = 40892556.

The previous prime is 40892543. The next prime is 40892561. The reversal of 40892557 is 75529804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29909961 + 10982596 = 5469^2 + 3314^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40892557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40892507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20446278 + 20446279.

It is an arithmetic number, because the mean of its divisors is an integer number (20446279).

Almost surely, 2^40892557 is an apocalyptic number.

It is an amenable number.

40892557 is a deficient number, since it is larger than the sum of its proper divisors (1).

40892557 is an equidigital number, since it uses as much as digits as its factorization.

40892557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 40892557 is about 6394.7288449159. The cubic root of 40892557 is about 344.5202517580.

The spelling of 40892557 in words is "forty million, eight hundred ninety-two thousand, five hundred fifty-seven".