2722501 has 4 divisors (see below), whose sum is σ = 2738412. Its totient is φ = 2706592.

The previous prime is 2722477. The next prime is 2722507. The reversal of 2722501 is 1052272.

It is a Cunningham number, because it is equal to 1650²+1.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2477476 + 245025 = 1574^2 + 495^2 .

It is a cyclic number.

It is not a de Polignac number, because 2722501 - 2⁵ = 2722469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2722507) 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, 7696 + ... + 8041.

It is an arithmetic number, because the mean of its divisors is an integer number (684603).

2^2722501 is an apocalyptic number.

It is an amenable number.

2722501 is a deficient number, since it is larger than the sum of its proper divisors (15911).

2722501 is a wasteful number, since it uses less digits than its factorization.

2722501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15910.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 2722501 is about 1650.0003030303. Note that the first 3 decimals coincide. The cubic root of 2722501 is about 139.6334116790.

Adding to 2722501 its reverse (1052272), we get a palindrome (3774773).

It can be divided in two parts, 2722 and 501, that added together give a palindrome (3223).

The spelling of 2722501 in words is "two million, seven hundred twenty-two thousand, five hundred one".