40553407 has 2 divisors, whose sum is σ = 40553408. Its totient is φ = 40553406.

The previous prime is 40553399. The next prime is 40553411. The reversal of 40553407 is 70435504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40553407 - 2³ = 40553399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40553437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20276703 + 20276704.

It is an arithmetic number, because the mean of its divisors is an integer number (20276704).

Almost surely, 2^40553407 is an apocalyptic number.

40553407 is a deficient number, since it is larger than the sum of its proper divisors (1).

40553407 is an equidigital number, since it uses as much as digits as its factorization.

40553407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 40553407 is about 6368.1556984735. The cubic root of 40553407 is about 343.5651589392.

The spelling of 40553407 in words is "forty million, five hundred fifty-three thousand, four hundred seven".