79422501 has 4 divisors (see below), whose sum is σ = 105896672. Its totient is φ = 52948332.

The previous prime is 79422491. The next prime is 79422559. The reversal of 79422501 is 10522497.

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 not a de Polignac number, because 79422501 - 2¹⁰ = 79421477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79422601) 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, 13237081 + ... + 13237086.

It is an arithmetic number, because the mean of its divisors is an integer number (26474168).

Almost surely, 2^79422501 is an apocalyptic number.

It is an amenable number.

79422501 is a deficient number, since it is larger than the sum of its proper divisors (26474171).

79422501 is a wasteful number, since it uses less digits than its factorization.

79422501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26474170.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 79422501 is about 8911.9302622945. The cubic root of 79422501 is about 429.8476132098.

Adding to 79422501 its reverse (10522497), we get a palindrome (89944998).

The spelling of 79422501 in words is "seventy-nine million, four hundred twenty-two thousand, five hundred one".