2615251 has 4 divisors (see below), whose sum is σ = 2619792. Its totient is φ = 2610712.

The previous prime is 2615243. The next prime is 2615257. The reversal of 2615251 is 1525162.

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 2615251 - 2³ = 2615243 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 (2615257) 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, 1255 + ... + 2608.

It is an arithmetic number, because the mean of its divisors is an integer number (654948).

2^2615251 is an apocalyptic number.

2615251 is a deficient number, since it is larger than the sum of its proper divisors (4541).

2615251 is an equidigital number, since it uses as much as digits as its factorization.

2615251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4540.

The product of its digits is 600, while the sum is 22.

The square root of 2615251 is about 1617.1737692654. The cubic root of 2615251 is about 137.7752239429.

The spelling of 2615251 in words is "two million, six hundred fifteen thousand, two hundred fifty-one".