2150776554 has 16 divisors (see below), whose sum is σ = 4527950880. Its totient is φ = 679192560.

The previous prime is 2150776553. The next prime is 2150776567. The reversal of 2150776554 is 4556770512.

It is a happy number.

It is a super-2 number, since 2×2150776554² = 9251679570472229832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2150776553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9433117 + ... + 9433344.

It is an arithmetic number, because the mean of its divisors is an integer number (282996930).

Almost surely, 2^2150776554 is an apocalyptic number.

2150776554 is an abundant number, since it is smaller than the sum of its proper divisors (2377174326).

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

2150776554 is a wasteful number, since it uses less digits than its factorization.

2150776554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18866485.

The product of its (nonzero) digits is 294000, while the sum is 42.

The square root of 2150776554 is about 46376.4655186227. The cubic root of 2150776554 is about 1290.8182525775.

The spelling of 2150776554 in words is "two billion, one hundred fifty million, seven hundred seventy-six thousand, five hundred fifty-four".