782053081 has 2 divisors, whose sum is σ = 782053082. Its totient is φ = 782053080.

The previous prime is 782053073. The next prime is 782053087. The reversal of 782053081 is 180350287.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 773729856 + 8323225 = 27816^2 + 2885^2 .

It is a cyclic number.

It is not a de Polignac number, because 782053081 - 2³ = 782053073 is a prime.

It is a super-2 number, since 2×782053081² = 1223214043003185122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (782053087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 391026540 + 391026541.

It is an arithmetic number, because the mean of its divisors is an integer number (391026541).

Almost surely, 2^782053081 is an apocalyptic number.

It is an amenable number.

782053081 is a deficient number, since it is larger than the sum of its proper divisors (1).

782053081 is an equidigital number, since it uses as much as digits as its factorization.

782053081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 782053081 is about 27965.2119784564. The cubic root of 782053081 is about 921.3233479965.

The spelling of 782053081 in words is "seven hundred eighty-two million, fifty-three thousand, eighty-one".