55003480000 has 560 divisors, whose sum is σ = 168221152000. Its totient is φ = 17781120000.

The previous prime is 55003479997. The next prime is 55003480061. The reversal of 55003480000 is 8430055.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (560).

It is a super-2 number, since 2×55003480000² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 260679895 + ... + 260680105.

Almost surely, 2^55003480000 is an apocalyptic number.

55003480000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55003480000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84110576000).

55003480000 is an abundant number, since it is smaller than the sum of its proper divisors (113217672000).

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

55003480000 is an equidigital number, since it uses as much as digits as its factorization.

55003480000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 55003480000 in words is "fifty-five billion, three million, four hundred eighty thousand".