2545224551 has 4 divisors (see below), whose sum is σ = 2655886512. Its totient is φ = 2434562592.

The previous prime is 2545224529. The next prime is 2545224559. The reversal of 2545224551 is 1554225452.

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

It is a cyclic number.

It is not a de Polignac number, because 2545224551 - 2¹⁴ = 2545208167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545224559) 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, 55330946 + ... + 55330991.

It is an arithmetic number, because the mean of its divisors is an integer number (663971628).

Almost surely, 2^2545224551 is an apocalyptic number.

2545224551 is a deficient number, since it is larger than the sum of its proper divisors (110661961).

2545224551 is a wasteful number, since it uses less digits than its factorization.

2545224551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110661960.

The product of its digits is 80000, while the sum is 35.

The square root of 2545224551 is about 50450.2185426386. The cubic root of 2545224551 is about 1365.3438378493.

Subtracting from 2545224551 its reverse (1554225452), we obtain a palindrome (990999099).

The spelling of 2545224551 in words is "two billion, five hundred forty-five million, two hundred twenty-four thousand, five hundred fifty-one".