2531623 has 8 divisors (see below), whose sum is σ = 2702592. Its totient is φ = 2363136.

The previous prime is 2531611. The next prime is 2531629. The reversal of 2531623 is 3261352.

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

It is not a de Polignac number, because 2531623 - 2¹⁷ = 2400551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2531594 and 2531603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531629) 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, 1786 + ... + 2872.

It is an arithmetic number, because the mean of its divisors is an integer number (337824).

2^2531623 is an apocalyptic number.

2531623 is a deficient number, since it is larger than the sum of its proper divisors (170969).

2531623 is a wasteful number, since it uses less digits than its factorization.

2531623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241.

The product of its digits is 1080, while the sum is 22.

The square root of 2531623 is about 1591.1074759425. The cubic root of 2531623 is about 136.2907383162.

Adding to 2531623 its reverse (3261352), we get a palindrome (5792975).

The spelling of 2531623 in words is "two million, five hundred thirty-one thousand, six hundred twenty-three".