79149553 has 12 divisors (see below), whose sum is σ = 92216880. Its totient is φ = 67735752.

The previous prime is 79149533. The next prime is 79149563. The reversal of 79149553 is 35594197.

It is a de Polignac number, because none of the positive numbers 2^k-79149553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79149523) 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 11 ways as a sum of consecutive naturals, for example, 61050 + ... + 62332.

It is an arithmetic number, because the mean of its divisors is an integer number (7684740).

Almost surely, 2^79149553 is an apocalyptic number.

It is an amenable number.

79149553 is a deficient number, since it is larger than the sum of its proper divisors (13067327).

79149553 is a wasteful number, since it uses less digits than its factorization.

79149553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2556 (or 2549 counting only the distinct ones).

The product of its digits is 170100, while the sum is 43.

The square root of 79149553 is about 8896.6034530038. The cubic root of 79149553 is about 429.3546349177.

The spelling of 79149553 in words is "seventy-nine million, one hundred forty-nine thousand, five hundred fifty-three".