2153611650 has 48 divisors (see below), whose sum is σ = 5370861600. Its totient is φ = 571080960.

The previous prime is 2153611637. The next prime is 2153611657. The reversal of 2153611650 is 561163512.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (2153611657) 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, 13255 + ... + 66954.

It is an arithmetic number, because the mean of its divisors is an integer number (111892950).

Almost surely, 2^2153611650 is an apocalyptic number.

2153611650 is an abundant number, since it is smaller than the sum of its proper divisors (3217249950).

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

2153611650 is a wasteful number, since it uses less digits than its factorization.

2153611650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80403 (or 80398 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 2153611650 is about 46407.0215592425. The cubic root of 2153611650 is about 1291.3851775550.

The spelling of 2153611650 in words is "two billion, one hundred fifty-three million, six hundred eleven thousand, six hundred fifty".