55205515213210 has 64 divisors (see below), whose sum is σ = 103317689026944. Its totient is φ = 21221083699200.

The previous prime is 55205515213201. The next prime is 55205515213231. The reversal of 55205515213210 is 1231251550255.

It is a self number, because there is not a number n which added to its sum of digits gives 55205515213210.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 926066305 + ... + 926125915.

It is an arithmetic number, because the mean of its divisors is an integer number (1614338891046).

Almost surely, 2^{55205515213210} is an apocalyptic number.

55205515213210 is a deficient number, since it is larger than the sum of its proper divisors (48112173813734).

55205515213210 is a wasteful number, since it uses less digits than its factorization.

55205515213210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93439.

The product of its (nonzero) digits is 75000, while the sum is 37.

Adding to 55205515213210 its reverse (1231251550255), we get a palindrome (56436766763465).

The spelling of 55205515213210 in words is "fifty-five trillion, two hundred five billion, five hundred fifteen million, two hundred thirteen thousand, two hundred ten".