2523551 has 8 divisors (see below), whose sum is σ = 2630880. Its totient is φ = 2417632.

The previous prime is 2523539. The next prime is 2523557. The reversal of 2523551 is 1553252.

2523551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2523551 - 2⁶ = 2523487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2523557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4766 + ... + 5268.

It is an arithmetic number, because the mean of its divisors is an integer number (328860).

2^2523551 is an apocalyptic number.

2523551 is a deficient number, since it is larger than the sum of its proper divisors (107329).

2523551 is a wasteful number, since it uses less digits than its factorization.

2523551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705.

The product of its digits is 1500, while the sum is 23.

The square root of 2523551 is about 1588.5688527728. The cubic root of 2523551 is about 136.1457311846.

Subtracting from 2523551 its reverse (1553252), we obtain a cube (970299 = 99³).

The spelling of 2523551 in words is "two million, five hundred twenty-three thousand, five hundred fifty-one".