77525006 has 16 divisors (see below), whose sum is σ = 126345744. Its totient is φ = 35462784.

The previous prime is 77525003. The next prime is 77525011. The reversal of 77525006 is 60052577.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77525003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10256 + ... + 16131.

It is an arithmetic number, because the mean of its divisors is an integer number (7896609).

Almost surely, 2^77525006 is an apocalyptic number.

77525006 is a deficient number, since it is larger than the sum of its proper divisors (48820738).

77525006 is a wasteful number, since it uses less digits than its factorization.

77525006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26515.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 77525006 is about 8804.8285616473. The cubic root of 77525006 is about 426.3967994238.

The spelling of 77525006 in words is "seventy-seven million, five hundred twenty-five thousand, six".