40533557 has 4 divisors (see below), whose sum is σ = 41046720. Its totient is φ = 40020396.

The previous prime is 40533553. The next prime is 40533569. The reversal of 40533557 is 75533504.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40533557 - 2² = 40533553 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40533553) 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, 256463 + ... + 256620.

It is an arithmetic number, because the mean of its divisors is an integer number (10261680).

Almost surely, 2^40533557 is an apocalyptic number.

It is an amenable number.

40533557 is a deficient number, since it is larger than the sum of its proper divisors (513163).

40533557 is an equidigital number, since it uses as much as digits as its factorization.

40533557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513162.

The product of its (nonzero) digits is 31500, while the sum is 32.

The square root of 40533557 is about 6366.5969716953. The cubic root of 40533557 is about 343.5090939300.

The spelling of 40533557 in words is "forty million, five hundred thirty-three thousand, five hundred fifty-seven".