2251501 has 6 divisors (see below), whose sum is σ = 2619150. Its totient is φ = 1929816.

The previous prime is 2251489. The next prime is 2251507. The reversal of 2251501 is 1051522.

It can be written as a sum of positive squares in only one way, i.e., 2160900 + 90601 = 1470^2 + 301^2 .

It is not a de Polignac number, because 2251501 - 2⁷ = 2251373 is a prime.

It is the 1501-st Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251507) by changing a digit.

It is a nontrivial repunit in base 1500.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22926 + ... + 23023.

It is an arithmetic number, because the mean of its divisors is an integer number (436525).

2^2251501 is an apocalyptic number.

It is an amenable number.

2251501 is a deficient number, since it is larger than the sum of its proper divisors (367649).

2251501 is an equidigital number, since it uses as much as digits as its factorization.

2251501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45963 (or 45956 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 2251501 is about 1500.5002499167. The cubic root of 2251501 is about 131.0662019950.

The spelling of 2251501 in words is "two million, two hundred fifty-one thousand, five hundred one".