40553497 has 2 divisors, whose sum is σ = 40553498. Its totient is φ = 40553496.

The previous prime is 40553477. The next prime is 40553519. The reversal of 40553497 is 79435504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39677401 + 876096 = 6299^2 + 936^2 .

It is a cyclic number.

It is not a de Polignac number, because 40553497 - 2¹¹ = 40551449 is a prime.

It is a super-2 number, since 2×40553497² = 3289172237858018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40553407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20276748 + 20276749.

It is an arithmetic number, because the mean of its divisors is an integer number (20276749).

Almost surely, 2^40553497 is an apocalyptic number.

It is an amenable number.

40553497 is a deficient number, since it is larger than the sum of its proper divisors (1).

40553497 is an equidigital number, since it uses as much as digits as its factorization.

40553497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 40553497 is about 6368.1627648797. The cubic root of 40553497 is about 343.5654130966.

The spelling of 40553497 in words is "forty million, five hundred fifty-three thousand, four hundred ninety-seven".