2451153220 has 12 divisors (see below), whose sum is σ = 5147421804. Its totient is φ = 980461280.

The previous prime is 2451153203. The next prime is 2451153227. The reversal of 2451153220 is 223511542.

It can be written as a sum of positive squares in 2 ways, for example, as 1109689344 + 1341463876 = 33312^2 + 36626^2 .

It is not an unprimeable number, because it can be changed into a prime (2451153227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61278811 + ... + 61278850.

It is an arithmetic number, because the mean of its divisors is an integer number (428951817).

Almost surely, 2^2451153220 is an apocalyptic number.

2451153220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2451153220 is an abundant number, since it is smaller than the sum of its proper divisors (2696268584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2451153220 is a wasteful number, since it uses less digits than its factorization.

2451153220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122557670 (or 122557668 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2451153220 is about 49509.1225937200. The cubic root of 2451153220 is about 1348.3112344772.

Adding to 2451153220 its reverse (223511542), we get a palindrome (2674664762).

The spelling of 2451153220 in words is "two billion, four hundred fifty-one million, one hundred fifty-three thousand, two hundred twenty".