77055060 has 48 divisors (see below), whose sum is σ = 225138816. Its totient is φ = 19654272.

The previous prime is 77055049. The next prime is 77055061. The reversal of 77055060 is 6055077.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77055061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26539 + ... + 29298.

It is an arithmetic number, because the mean of its divisors is an integer number (4690392).

Almost surely, 2^77055060 is an apocalyptic number.

It is an amenable number.

77055060 is an abundant number, since it is smaller than the sum of its proper divisors (148083756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77055060 is a wasteful number, since it uses less digits than its factorization.

77055060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55872 (or 55870 counting only the distinct ones).

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 77055060 is about 8778.1011614130. The cubic root of 77055060 is about 425.5334662068.

The spelling of 77055060 in words is "seventy-seven million, fifty-five thousand, sixty".