7922251 has 4 divisors (see below), whose sum is σ = 8033904.
Its totient is φ = 7810600.
The previous prime is 7922231. The next prime is 7922261. The reversal of 7922251 is 1522297.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 7922251 - 25 = 7922219 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (7922231) 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, 55720 + ... + 55861.
It is an arithmetic number, because the mean of its divisors is an integer number (2008476).
Almost surely, 27922251 is an apocalyptic number.
7922251 is a gapful number since it is divisible by the number (71) formed by its first and last digit.
7922251 is a deficient number, since it is larger than the sum of its proper divisors (111653).
7922251 is a wasteful number, since it uses less digits than its factorization.
7922251 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 111652.
The product of its digits is 2520, while the sum is 28.
The square root of 7922251 is about 2814.6493564919.
The cubic root of 7922251 is about 199.3499813341.
The spelling of 7922251 in words is "seven million, nine hundred twenty-two thousand, two hundred fifty-one".