79358551 has 4 divisors (see below), whose sum is σ = 79396504. Its totient is φ = 79320600.

The previous prime is 79358537. The next prime is 79358557. The reversal of 79358551 is 15585397.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15585397 = 173 ⋅90089.

It is a cyclic number.

It is not a de Polignac number, because 79358551 - 2¹⁹ = 78834263 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79358498 and 79358507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79358557) 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, 15645 + ... + 20086.

It is an arithmetic number, because the mean of its divisors is an integer number (19849126).

Almost surely, 2^79358551 is an apocalyptic number.

79358551 is a deficient number, since it is larger than the sum of its proper divisors (37953).

79358551 is a wasteful number, since it uses less digits than its factorization.

79358551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37952.

The product of its digits is 189000, while the sum is 43.

The square root of 79358551 is about 8908.3416526310. The cubic root of 79358551 is about 429.7322129321.

The spelling of 79358551 in words is "seventy-nine million, three hundred fifty-eight thousand, five hundred fifty-one".