55049047020 has 144 divisors (see below), whose sum is σ = 184468677120. Its totient is φ = 13176259200.

The previous prime is 55049046889. The next prime is 55049047037. The reversal of 55049047020 is 2074094055.

55049047020 is a `hidden beast` number, since 5 + 504 + 90 + 47 + 0 + 20 = 666.

It is a super-4 number, since 4×55049047020⁴ (a number of 44 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19546 + ... + 332385.

It is an arithmetic number, because the mean of its divisors is an integer number (1281032480).

Almost surely, 2^55049047020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55049047020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92234338560).

55049047020 is an abundant number, since it is smaller than the sum of its proper divisors (129419630100).

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

55049047020 is a wasteful number, since it uses less digits than its factorization.

55049047020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352036 (or 352031 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 55049047020 in words is "fifty-five billion, forty-nine million, forty-seven thousand, twenty".