40079553 has 4 divisors (see below), whose sum is σ = 53439408. Its totient is φ = 26719700.

The previous prime is 40079521. The next prime is 40079573. The reversal of 40079553 is 35597004.

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 40079553 - 2⁵ = 40079521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40079513) 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, 6679923 + ... + 6679928.

It is an arithmetic number, because the mean of its divisors is an integer number (13359852).

Almost surely, 2^40079553 is an apocalyptic number.

It is an amenable number.

40079553 is a deficient number, since it is larger than the sum of its proper divisors (13359855).

40079553 is a wasteful number, since it uses less digits than its factorization.

40079553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13359854.

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 40079553 is about 6330.8414132720. The cubic root of 40079553 is about 342.2217620580.

The spelling of 40079553 in words is "forty million, seventy-nine thousand, five hundred fifty-three".