2541551 has 4 divisors (see below), whose sum is σ = 2691072. Its totient is φ = 2392032.

The previous prime is 2541547. The next prime is 2541559. The reversal of 2541551 is 1551452.

It is a happy number.

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 2541551 - 2² = 2541547 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 (2541559) 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, 74735 + ... + 74768.

It is an arithmetic number, because the mean of its divisors is an integer number (672768).

2^2541551 is an apocalyptic number.

2541551 is a deficient number, since it is larger than the sum of its proper divisors (149521).

2541551 is a wasteful number, since it uses less digits than its factorization.

2541551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149520.

The product of its digits is 1000, while the sum is 23.

The square root of 2541551 is about 1594.2242627686. The cubic root of 2541551 is about 136.4686649572.

Subtracting from 2541551 its reverse (1551452), we obtain a palindrome (990099).

The spelling of 2541551 in words is "two million, five hundred forty-one thousand, five hundred fifty-one".