2540777933 has 2 divisors, whose sum is σ = 2540777934. Its totient is φ = 2540777932.

The previous prime is 2540777923. The next prime is 2540777969. The reversal of 2540777933 is 3397770452.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1724990089 + 815787844 = 41533^2 + 28562^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2540777933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2540777923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270388966 + 1270388967.

It is an arithmetic number, because the mean of its divisors is an integer number (1270388967).

Almost surely, 2^2540777933 is an apocalyptic number.

It is an amenable number.

2540777933 is a deficient number, since it is larger than the sum of its proper divisors (1).

2540777933 is an equidigital number, since it uses as much as digits as its factorization.

2540777933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1111320, while the sum is 47.

The square root of 2540777933 is about 50406.1299149221. The cubic root of 2540777933 is about 1364.5482693473.

The spelling of 2540777933 in words is "two billion, five hundred forty million, seven hundred seventy-seven thousand, nine hundred thirty-three".