40555533 has 8 divisors (see below), whose sum is σ = 55818496. Its totient is φ = 26164800.

The previous prime is 40555531. The next prime is 40555549. The reversal of 40555533 is 33555504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40555533 - 2¹ = 40555531 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40555533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40555531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217948 + ... + 218133.

It is an arithmetic number, because the mean of its divisors is an integer number (6977312).

Almost surely, 2^40555533 is an apocalyptic number.

It is an amenable number.

40555533 is a deficient number, since it is larger than the sum of its proper divisors (15262963).

40555533 is a wasteful number, since it uses less digits than its factorization.

40555533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436115.

The product of its (nonzero) digits is 22500, while the sum is 30.

The square root of 40555533 is about 6368.3226205964. The cubic root of 40555533 is about 343.5711626006.

The spelling of 40555533 in words is "forty million, five hundred fifty-five thousand, five hundred thirty-three".