7285251 has 4 divisors (see below), whose sum is σ = 9713672. Its totient is φ = 4856832.

The previous prime is 7285247. The next prime is 7285253. The reversal of 7285251 is 1525827.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 7285251 - 2² = 7285247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7285253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1214206 + ... + 1214211.

It is an arithmetic number, because the mean of its divisors is an integer number (2428418).

Almost surely, 2^7285251 is an apocalyptic number.

7285251 is a deficient number, since it is larger than the sum of its proper divisors (2428421).

7285251 is a wasteful number, since it uses less digits than its factorization.

7285251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2428420.

The product of its digits is 5600, while the sum is 30.

The square root of 7285251 is about 2699.1204122825. The cubic root of 7285251 is about 193.8570083874.

The spelling of 7285251 in words is "seven million, two hundred eighty-five thousand, two hundred fifty-one".