77825263 has 2 divisors, whose sum is σ = 77825264. Its totient is φ = 77825262.

The previous prime is 77825243. The next prime is 77825281. The reversal of 77825263 is 36252877.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77825263 is a prime.

It is a super-2 number, since 2×77825263² = 12113543122038338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77825243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38912631 + 38912632.

It is an arithmetic number, because the mean of its divisors is an integer number (38912632).

Almost surely, 2^77825263 is an apocalyptic number.

77825263 is a deficient number, since it is larger than the sum of its proper divisors (1).

77825263 is an equidigital number, since it uses as much as digits as its factorization.

77825263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 40.

The square root of 77825263 is about 8821.8627851492. The cubic root of 77825263 is about 426.9465733988.

The spelling of 77825263 in words is "seventy-seven million, eight hundred twenty-five thousand, two hundred sixty-three".