2115052550 has 48 divisors (see below), whose sum is σ = 4242093072. Its totient is φ = 779932800.

The previous prime is 2115052487. The next prime is 2115052553. The reversal of 2115052550 is 552505112.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115052553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 662057 + ... + 665243.

It is an arithmetic number, because the mean of its divisors is an integer number (88376939).

Almost surely, 2^2115052550 is an apocalyptic number.

2115052550 is an abundant number, since it is smaller than the sum of its proper divisors (2127040522).

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

2115052550 is a wasteful number, since it uses less digits than its factorization.

2115052550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4233 (or 4228 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 2115052550 is about 45989.7004773895. The cubic root of 2115052550 is about 1283.6315631556.

Adding to 2115052550 its reverse (552505112), we get a palindrome (2667557662).

The spelling of 2115052550 in words is "two billion, one hundred fifteen million, fifty-two thousand, five hundred fifty".