77525005 has 8 divisors (see below), whose sum is σ = 93300192. Its totient is φ = 61839888.

The previous prime is 77525003. The next prime is 77525011. The reversal of 77525005 is 50052577.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77525005 - 2¹ = 77525003 is a prime.

It is a Duffinian 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, 20607 + ... + 24076.

It is an arithmetic number, because the mean of its divisors is an integer number (11662524).

Almost surely, 2^77525005 is an apocalyptic number.

It is an amenable number.

77525005 is a deficient number, since it is larger than the sum of its proper divisors (15775187).

77525005 is a wasteful number, since it uses less digits than its factorization.

77525005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45035.

The product of its (nonzero) digits is 12250, while the sum is 31.

The square root of 77525005 is about 8804.8285048603. The cubic root of 77525005 is about 426.3967975904.

The spelling of 77525005 in words is "seventy-seven million, five hundred twenty-five thousand, five".