55510555510 has 16 divisors (see below), whose sum is σ = 101326311072. Its totient is φ = 21891486400.

The previous prime is 55510555423. The next prime is 55510555519. The reversal of 55510555510 is 1555501555.

It is a self number, because there is not a number n which added to its sum of digits gives 55510555510.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55510555519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39091231 + ... + 39092650.

It is an arithmetic number, because the mean of its divisors is an integer number (6332894442).

Almost surely, 2^55510555510 is an apocalyptic number.

55510555510 is a deficient number, since it is larger than the sum of its proper divisors (45815755562).

55510555510 is a wasteful number, since it uses less digits than its factorization.

55510555510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78183959.

The product of its (nonzero) digits is 78125, while the sum is 37.

The spelling of 55510555510 in words is "fifty-five billion, five hundred ten million, five hundred fifty-five thousand, five hundred ten".