77055101 has 4 divisors (see below), whose sum is σ = 81587772. Its totient is φ = 72522432.

The previous prime is 77055079. The next prime is 77055103. The reversal of 77055101 is 10155077.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52562500 + 24492601 = 7250^2 + 4949^2 .

It is a cyclic number.

It is not a de Polignac number, because 77055101 - 2¹⁰ = 77054077 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 (77055103) 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, 2266310 + ... + 2266343.

It is an arithmetic number, because the mean of its divisors is an integer number (20396943).

Almost surely, 2^77055101 is an apocalyptic number.

It is an amenable number.

77055101 is a deficient number, since it is larger than the sum of its proper divisors (4532671).

77055101 is a wasteful number, since it uses less digits than its factorization.

77055101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4532670.

The product of its (nonzero) digits is 1225, while the sum is 26.

The square root of 77055101 is about 8778.1034967697. The cubic root of 77055101 is about 425.5335416804.

The spelling of 77055101 in words is "seventy-seven million, fifty-five thousand, one hundred one".