55777035772 has 12 divisors (see below), whose sum is σ = 97611751440. Its totient is φ = 27887963936.

The previous prime is 55777035719. The next prime is 55777035773. The reversal of 55777035772 is 27753077755.

It is a super-2 number, since 2×55777035772² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55777035773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159129 + ... + 369967.

It is an arithmetic number, because the mean of its divisors is an integer number (8134312620).

Almost surely, 2^55777035772 is an apocalyptic number.

It is an amenable number.

55777035772 is a deficient number, since it is larger than the sum of its proper divisors (41834715668).

55777035772 is a wasteful number, since it uses less digits than its factorization.

55777035772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276980 (or 276978 counting only the distinct ones).

The product of its (nonzero) digits is 12605250, while the sum is 55.

The spelling of 55777035772 in words is "fifty-five billion, seven hundred seventy-seven million, thirty-five thousand, seven hundred seventy-two".