2445553 has 4 divisors (see below), whose sum is σ = 2667888. Its totient is φ = 2223220.

The previous prime is 2445533. The next prime is 2445557. The reversal of 2445553 is 3555442.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2445553 - 2²¹ = 348401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2445557) 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, 111151 + ... + 111172.

It is an arithmetic number, because the mean of its divisors is an integer number (666972).

2^2445553 is an apocalyptic number.

It is an amenable number.

2445553 is a deficient number, since it is larger than the sum of its proper divisors (222335).

2445553 is a wasteful number, since it uses less digits than its factorization.

2445553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222334.

The product of its digits is 12000, while the sum is 28.

The square root of 2445553 is about 1563.8263970147. The cubic root of 2445553 is about 134.7283609694.

The spelling of 2445553 in words is "two million, four hundred forty-five thousand, five hundred fifty-three".