2523447 has 16 divisors (see below), whose sum is σ = 3936000. Its totient is φ = 1593432.

The previous prime is 2523419. The next prime is 2523457. The reversal of 2523447 is 7443252.

It is not a de Polignac number, because 2523447 - 2¹⁵ = 2490679 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a d-powerful number, because it can be written as 2¹³ + 5⁷ + 2²¹ + 3¹⁰ + 4⁷ + 4⁹ + 7⁴ .

It is a self number, because there is not a number n which added to its sum of digits gives 2523447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2523457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1947 + ... + 2972.

It is an arithmetic number, because the mean of its divisors is an integer number (246000).

2^2523447 is an apocalyptic number.

2523447 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2523447 is a deficient number, since it is larger than the sum of its proper divisors (1412553).

2523447 is a wasteful number, since it uses less digits than its factorization.

2523447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4947 (or 4941 counting only the distinct ones).

The product of its digits is 6720, while the sum is 27.

The square root of 2523447 is about 1588.5361185695. The cubic root of 2523447 is about 136.1438608902.

Adding to 2523447 its reverse (7443252), we get a palindrome (9966699).

It can be divided in two parts, 25234 and 47, that added together give a square (25281 = 159²).

The spelling of 2523447 in words is "two million, five hundred twenty-three thousand, four hundred forty-seven".