2061263550 has 48 divisors (see below), whose sum is σ = 5162584752. Its totient is φ = 544224000.

The previous prime is 2061263539. The next prime is 2061263557. The reversal of 2061263550 is 553621602.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061263557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52879 + ... + 83178.

It is an arithmetic number, because the mean of its divisors is an integer number (107553849).

Almost surely, 2^2061263550 is an apocalyptic number.

2061263550 is an abundant number, since it is smaller than the sum of its proper divisors (3101321202).

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

2061263550 is a wasteful number, since it uses less digits than its factorization.

2061263550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136173 (or 136168 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 2061263550 is about 45401.1404041793. The cubic root of 2061263550 is about 1272.6564254085.

The spelling of 2061263550 in words is "two billion, sixty-one million, two hundred sixty-three thousand, five hundred fifty".