2445072155 has 16 divisors (see below), whose sum is σ = 3068539200. Its totient is φ = 1866805248.

The previous prime is 2445072151. The next prime is 2445072193. The reversal of 2445072155 is 5512705442.

It is a cyclic number.

It is not a de Polignac number, because 2445072155 - 2² = 2445072151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2445072151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27959 + ... + 75311.

It is an arithmetic number, because the mean of its divisors is an integer number (191783700).

Almost surely, 2^2445072155 is an apocalyptic number.

2445072155 is a deficient number, since it is larger than the sum of its proper divisors (623467045).

2445072155 is a wasteful number, since it uses less digits than its factorization.

2445072155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47830.

The product of its (nonzero) digits is 56000, while the sum is 35.

The square root of 2445072155 is about 49447.6708753810. The cubic root of 2445072155 is about 1347.1953028701.

Adding to 2445072155 its reverse (5512705442), we get a palindrome (7957777597).

The spelling of 2445072155 in words is "two billion, four hundred forty-five million, seventy-two thousand, one hundred fifty-five".