2152420550 has 36 divisors (see below), whose sum is σ = 4657140540. Its totient is φ = 737971920.

The previous prime is 2152420537. The next prime is 2152420553. The reversal of 2152420550 is 550242512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152420553) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 436820 + ... + 441719.

It is an arithmetic number, because the mean of its divisors is an integer number (129365015).

Almost surely, 2^2152420550 is an apocalyptic number.

2152420550 is an abundant number, since it is smaller than the sum of its proper divisors (2504719990).

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

2152420550 is a wasteful number, since it uses less digits than its factorization.

2152420550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878565 (or 878553 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 2152420550 is about 46394.1865970296. The cubic root of 2152420550 is about 1291.1470577832.

The spelling of 2152420550 in words is "two billion, one hundred fifty-two million, four hundred twenty thousand, five hundred fifty".