55170521010 has 128 divisors (see below), whose sum is σ = 160698193920. Its totient is φ = 13357828800.

The previous prime is 55170520991. The next prime is 55170521017. The reversal of 55170521010 is 1012507155.

55170521010 is a `hidden beast` number, since 551 + 7 + 0 + 5 + 2 + 101 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (55170521017) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2433025 + ... + 2455595.

It is an arithmetic number, because the mean of its divisors is an integer number (1255454640).

Almost surely, 2^55170521010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55170521010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80349096960).

55170521010 is an abundant number, since it is smaller than the sum of its proper divisors (105527672910).

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

55170521010 is a wasteful number, since it uses less digits than its factorization.

55170521010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23421 (or 23415 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 27.

The spelling of 55170521010 in words is "fifty-five billion, one hundred seventy million, five hundred twenty-one thousand, ten".