2553553 has 4 divisors (see below), whose sum is σ = 2703780. Its totient is φ = 2403328.

The previous prime is 2553547. The next prime is 2553559. The reversal of 2553553 is 3553552.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2553547) and next prime (2553559).

It can be written as a sum of positive squares in 2 ways, for example, as 1567504 + 986049 = 1252^2 + 993^2 .

It is a cyclic number.

It is not a de Polignac number, because 2553553 - 2⁹ = 2553041 is a prime.

It is a Duffinian number.

2553553 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2553559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75088 + ... + 75121.

It is an arithmetic number, because the mean of its divisors is an integer number (675945).

2^2553553 is an apocalyptic number.

It is an amenable number.

2553553 is a deficient number, since it is larger than the sum of its proper divisors (150227).

2553553 is a wasteful number, since it uses less digits than its factorization.

2553553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150226.

The product of its digits is 11250, while the sum is 28.

The square root of 2553553 is about 1597.9840424735. The cubic root of 2553553 is about 136.6831436278.

Subtracting 2553553 from its reverse (3553552), we obtain a palindrome (999999).

The spelling of 2553553 in words is "two million, five hundred fifty-three thousand, five hundred fifty-three".