40256553 has 8 divisors (see below), whose sum is σ = 55526400. Its totient is φ = 25912208.

The previous prime is 40256549. The next prime is 40256591. The reversal of 40256553 is 35565204.

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

It is a cyclic number.

It is not a de Polignac number, because 40256553 - 2² = 40256549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40256553.

It is not an unprimeable number, because it can be changed into a prime (40256543) 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, 231273 + ... + 231446.

It is an arithmetic number, because the mean of its divisors is an integer number (6940800).

Almost surely, 2^40256553 is an apocalyptic number.

It is an amenable number.

40256553 is a deficient number, since it is larger than the sum of its proper divisors (15269847).

40256553 is a wasteful number, since it uses less digits than its factorization.

40256553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462751.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 40256553 is about 6344.8051979553. The cubic root of 40256553 is about 342.7247974570.

The spelling of 40256553 in words is "forty million, two hundred fifty-six thousand, five hundred fifty-three".