540223777 has 2 divisors, whose sum is σ = 540223778. Its totient is φ = 540223776.

The previous prime is 540223759. The next prime is 540223799. The reversal of 540223777 is 777322045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 511483456 + 28740321 = 22616^2 + 5361^2 .

It is a cyclic number.

It is not a de Polignac number, because 540223777 - 2²³ = 531835169 is a prime.

It is a super-2 number, since 2×540223777² = 583683458472291458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (540223727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270111888 + 270111889.

It is an arithmetic number, because the mean of its divisors is an integer number (270111889).

Almost surely, 2^540223777 is an apocalyptic number.

It is an amenable number.

540223777 is a deficient number, since it is larger than the sum of its proper divisors (1).

540223777 is an equidigital number, since it uses as much as digits as its factorization.

540223777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82320, while the sum is 37.

The square root of 540223777 is about 23242.7144929330. The cubic root of 540223777 is about 814.4377554126.

The spelling of 540223777 in words is "five hundred forty million, two hundred twenty-three thousand, seven hundred seventy-seven".