55501698 has 64 divisors (see below), whose sum is σ = 134691840. Its totient is φ = 14893632.

The previous prime is 55501669. The next prime is 55501703. The reversal of 55501698 is 89610555.

55501698 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125065 + ... + 125507.

It is an arithmetic number, because the mean of its divisors is an integer number (2104560).

Almost surely, 2^55501698 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55501698, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67345920).

55501698 is an abundant number, since it is smaller than the sum of its proper divisors (79190142).

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

55501698 is a wasteful number, since it uses less digits than its factorization.

55501698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631.

The product of its (nonzero) digits is 54000, while the sum is 39.

The square root of 55501698 is about 7449.9461743022. The cubic root of 55501698 is about 381.4480712963.

The spelling of 55501698 in words is "fifty-five million, five hundred one thousand, six hundred ninety-eight".