2553623 has 4 divisors (see below), whose sum is σ = 2556840. Its totient is φ = 2550408.

The previous prime is 2553611. The next prime is 2553631. The reversal of 2553623 is 3263552.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2553623 - 2⁶ = 2553559 is a prime.

It is a super-2 number, since 2×2553623² = 13041980852258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2553592 and 2553601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2553223) 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, 536 + ... + 2322.

It is an arithmetic number, because the mean of its divisors is an integer number (639210).

2^2553623 is an apocalyptic number.

2553623 is a deficient number, since it is larger than the sum of its proper divisors (3217).

2553623 is a wasteful number, since it uses less digits than its factorization.

2553623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3216.

The product of its digits is 5400, while the sum is 26.

The square root of 2553623 is about 1598.0059449201. The cubic root of 2553623 is about 136.6843925716.

The spelling of 2553623 in words is "two million, five hundred fifty-three thousand, six hundred twenty-three".