2455111220 has 24 divisors (see below), whose sum is σ = 5427088800. Its totient is φ = 930357792.

The previous prime is 2455111177. The next prime is 2455111229. The reversal of 2455111220 is 221115542.

It is a super-2 number, since 2×2455111220² = 12055142205139776800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2455111229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3230030 + ... + 3230789.

It is an arithmetic number, because the mean of its divisors is an integer number (226128700).

Almost surely, 2^2455111220 is an apocalyptic number.

2455111220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2455111220 is an abundant number, since it is smaller than the sum of its proper divisors (2971977580).

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

2455111220 is a wasteful number, since it uses less digits than its factorization.

2455111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6460847 (or 6460845 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 2455111220 is about 49549.0789016305. The cubic root of 2455111220 is about 1349.0365727877.

Adding to 2455111220 its reverse (221115542), we get a palindrome (2676226762).

The spelling of 2455111220 in words is "two billion, four hundred fifty-five million, one hundred eleven thousand, two hundred twenty".