40352551 has 2 divisors, whose sum is σ = 40352552. Its totient is φ = 40352550.

The previous prime is 40352549. The next prime is 40352573. The reversal of 40352551 is 15525304.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40352551 - 2¹ = 40352549 is a prime.

Together with 40352549, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40352531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20176275 + 20176276.

It is an arithmetic number, because the mean of its divisors is an integer number (20176276).

Almost surely, 2^40352551 is an apocalyptic number.

40352551 is a deficient number, since it is larger than the sum of its proper divisors (1).

40352551 is an equidigital number, since it uses as much as digits as its factorization.

40352551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 40352551 is about 6352.3657797706. The cubic root of 40352551 is about 342.9970080233.

Adding to 40352551 its reverse (15525304), we get a palindrome (55877855).

The spelling of 40352551 in words is "forty million, three hundred fifty-two thousand, five hundred fifty-one".