2125216550 has 48 divisors (see below), whose sum is σ = 4110018192. Its totient is φ = 816921600.

The previous prime is 2125216507. The next prime is 2125216573. The reversal of 2125216550 is 556125212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129614 + ... + 145086.

It is an arithmetic number, because the mean of its divisors is an integer number (85625379).

Almost surely, 2^2125216550 is an apocalyptic number.

2125216550 is a deficient number, since it is larger than the sum of its proper divisors (1984801642).

2125216550 is a wasteful number, since it uses less digits than its factorization.

2125216550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15593 (or 15588 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 2125216550 is about 46100.0710411600. The cubic root of 2125216550 is about 1285.6844652990.

The spelling of 2125216550 in words is "two billion, one hundred twenty-five million, two hundred sixteen thousand, five hundred fifty".