40857553 has 4 divisors (see below), whose sum is σ = 44571888. Its totient is φ = 37143220.

The previous prime is 40857547. The next prime is 40857563. The reversal of 40857553 is 35575804.

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 40857553 - 2⁹ = 40857041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40857563) 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 in 3 ways as a sum of consecutive naturals, for example, 1857151 + ... + 1857172.

It is an arithmetic number, because the mean of its divisors is an integer number (11142972).

Almost surely, 2^40857553 is an apocalyptic number.

It is an amenable number.

40857553 is a deficient number, since it is larger than the sum of its proper divisors (3714335).

40857553 is a wasteful number, since it uses less digits than its factorization.

40857553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3714334.

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 40857553 is about 6391.9913172657. The cubic root of 40857553 is about 344.4219206646.

The spelling of 40857553 in words is "forty million, eight hundred fifty-seven thousand, five hundred fifty-three".