611880481 has 2 divisors, whose sum is σ = 611880482. Its totient is φ = 611880480.

The previous prime is 611880419. The next prime is 611880487. The reversal of 611880481 is 184088116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 311204881 + 300675600 = 17641^2 + 17340^2 .

It is a cyclic number.

It is not a de Polignac number, because 611880481 - 2⁹ = 611879969 is a prime.

It is a super-2 number, since 2×611880481² = 748795446057582722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 611880481.

It is not a weakly prime, because it can be changed into another prime (611880487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305940240 + 305940241.

It is an arithmetic number, because the mean of its divisors is an integer number (305940241).

Almost surely, 2^611880481 is an apocalyptic number.

It is an amenable number.

611880481 is a deficient number, since it is larger than the sum of its proper divisors (1).

611880481 is an equidigital number, since it uses as much as digits as its factorization.

611880481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 37.

The square root of 611880481 is about 24736.2180011416. The cubic root of 611880481 is about 848.9632023037.

The spelling of 611880481 in words is "six hundred eleven million, eight hundred eighty thousand, four hundred eighty-one".