40598551 has 4 divisors (see below), whose sum is σ = 46398352. Its totient is φ = 34798752.

The previous prime is 40598543. The next prime is 40598563. The reversal of 40598551 is 15589504.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40598551 - 2³ = 40598543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40598551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40598501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2899890 + ... + 2899903.

It is an arithmetic number, because the mean of its divisors is an integer number (11599588).

Almost surely, 2^40598551 is an apocalyptic number.

40598551 is a deficient number, since it is larger than the sum of its proper divisors (5799801).

40598551 is an equidigital number, since it uses as much as digits as its factorization.

40598551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5799800.

The product of its (nonzero) digits is 36000, while the sum is 37.

The square root of 40598551 is about 6371.6992239119. The cubic root of 40598551 is about 343.6925970925.

The spelling of 40598551 in words is "forty million, five hundred ninety-eight thousand, five hundred fifty-one".