2540251 has 8 divisors (see below), whose sum is σ = 2932704. Its totient is φ = 2155200.

The previous prime is 2540249. The next prime is 2540261. The reversal of 2540251 is 1520452.

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 2540251 - 2¹ = 2540249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2540201) 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, 1090 + ... + 2503.

It is an arithmetic number, because the mean of its divisors is an integer number (366588).

2^2540251 is an apocalyptic number.

2540251 is a deficient number, since it is larger than the sum of its proper divisors (392453).

2540251 is a wasteful number, since it uses less digits than its factorization.

2540251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3701.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 2540251 is about 1593.8164888092. The cubic root of 2540251 is about 136.4453931413.

The spelling of 2540251 in words is "two million, five hundred forty thousand, two hundred fifty-one".