2507261 has 4 divisors (see below), whose sum is σ = 2512224. Its totient is φ = 2502300.

The previous prime is 2507251. The next prime is 2507291. The reversal of 2507261 is 1627052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2507261 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 5 + 0 + 7⁷ + 2¹¹ + 6⁸ + 1 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2507251) 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, 1625 + ... + 2766.

It is an arithmetic number, because the mean of its divisors is an integer number (628056).

2^2507261 is an apocalyptic number.

It is an amenable number.

2507261 is a deficient number, since it is larger than the sum of its proper divisors (4963).

2507261 is an equidigital number, since it uses as much as digits as its factorization.

2507261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4962.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 2507261 is about 1583.4332950901. The cubic root of 2507261 is about 135.8521497346.

The spelling of 2507261 in words is "two million, five hundred seven thousand, two hundred sixty-one".