77055501 has 8 divisors (see below), whose sum is σ = 103309024. Its totient is φ = 51086160.

The previous prime is 77055493. The next prime is 77055533. The reversal of 77055501 is 10555077.

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

It is not a de Polignac number, because 77055501 - 2³ = 77055493 is a prime.

It is a super-2 number, since 2×77055501² = 11875100468722002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77055541) 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, 70411 + ... + 71496.

It is an arithmetic number, because the mean of its divisors is an integer number (12913628).

Almost surely, 2^77055501 is an apocalyptic number.

It is an amenable number.

77055501 is a deficient number, since it is larger than the sum of its proper divisors (26253523).

77055501 is a wasteful number, since it uses less digits than its factorization.

77055501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142091.

The product of its (nonzero) digits is 6125, while the sum is 30.

The square root of 77055501 is about 8778.1262807048. The cubic root of 77055501 is about 425.5342780068.

The spelling of 77055501 in words is "seventy-seven million, fifty-five thousand, five hundred one".