77550525011 has 4 divisors (see below), whose sum is σ = 80922286992. Its totient is φ = 74178763032.

The previous prime is 77550524993. The next prime is 77550525023. The reversal of 77550525011 is 11052505577.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11052505577 = 59 ⋅187330603.

It is a cyclic number.

It is not a de Polignac number, because 77550525011 - 2³⁴ = 60370655827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77550525511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1685880956 + ... + 1685881001.

It is an arithmetic number, because the mean of its divisors is an integer number (20230571748).

Almost surely, 2^77550525011 is an apocalyptic number.

77550525011 is a deficient number, since it is larger than the sum of its proper divisors (3371761981).

77550525011 is a wasteful number, since it uses less digits than its factorization.

77550525011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3371761980.

The product of its (nonzero) digits is 61250, while the sum is 38.

The spelling of 77550525011 in words is "seventy-seven billion, five hundred fifty million, five hundred twenty-five thousand, eleven".