77425651 has 2 divisors, whose sum is σ = 77425652. Its totient is φ = 77425650.

The previous prime is 77425603. The next prime is 77425657. The reversal of 77425651 is 15652477.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77425651 - 2²³ = 69037043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77425651.

It is not a weakly prime, because it can be changed into another prime (77425657) 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, 38712825 + 38712826.

It is an arithmetic number, because the mean of its divisors is an integer number (38712826).

Almost surely, 2^77425651 is an apocalyptic number.

77425651 is a deficient number, since it is larger than the sum of its proper divisors (1).

77425651 is an equidigital number, since it uses as much as digits as its factorization.

77425651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58800, while the sum is 37.

The square root of 77425651 is about 8799.1846781392. The cubic root of 77425651 is about 426.2145667607.

The spelling of 77425651 in words is "seventy-seven million, four hundred twenty-five thousand, six hundred fifty-one".