55601385898 has 16 divisors (see below), whose sum is σ = 85698771840. Its totient is φ = 27040539456.

The previous prime is 55601385863. The next prime is 55601385907. The reversal of 55601385898 is 89858310655.

55601385898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55601385898² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1332015 + ... + 1373122.

It is an arithmetic number, because the mean of its divisors is an integer number (5356173240).

Almost surely, 2^55601385898 is an apocalyptic number.

55601385898 is a deficient number, since it is larger than the sum of its proper divisors (30097385942).

55601385898 is a wasteful number, since it uses less digits than its factorization.

55601385898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2705421.

The product of its (nonzero) digits is 10368000, while the sum is 58.

The spelling of 55601385898 in words is "fifty-five billion, six hundred one million, three hundred eighty-five thousand, eight hundred ninety-eight".