79555542 has 16 divisors (see below), whose sum is σ = 173575872. Its totient is φ = 24107720.

The previous prime is 79555507. The next prime is 79555543. The reversal of 79555542 is 24555597.

It is a junction number, because it is equal to n+sod(n) for n = 79555494 and 79555503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79555543) 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, 602628 + ... + 602759.

It is an arithmetic number, because the mean of its divisors is an integer number (10848492).

Almost surely, 2^79555542 is an apocalyptic number.

79555542 is an abundant number, since it is smaller than the sum of its proper divisors (94020330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79555542 is a wasteful number, since it uses less digits than its factorization.

79555542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205403.

The product of its digits is 315000, while the sum is 42.

The square root of 79555542 is about 8919.3913469474. The cubic root of 79555542 is about 430.0874925626.

Subtracting from 79555542 its reverse (24555597), we obtain a palindrome (54999945).

It can be divided in two parts, 795555 and 42, that added together give a palindrome (795597).

The spelling of 79555542 in words is "seventy-nine million, five hundred fifty-five thousand, five hundred forty-two".