2501261 has 8 divisors (see below), whose sum is σ = 3026880. Its totient is φ = 2017728.

The previous prime is 2501251. The next prime is 2501269. The reversal of 2501261 is 1621052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2501261 - 2⁶ = 2501197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2501269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10391 + ... + 10628.

It is an arithmetic number, because the mean of its divisors is an integer number (378360).

2^2501261 is an apocalyptic number.

It is an amenable number.

2501261 is a deficient number, since it is larger than the sum of its proper divisors (525619).

2501261 is a wasteful number, since it uses less digits than its factorization.

2501261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21043.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 2501261 is about 1581.5375430258. The cubic root of 2501261 is about 135.7436961982.

The spelling of 2501261 in words is "two million, five hundred one thousand, two hundred sixty-one".