55003304155400 has 24 divisors (see below), whose sum is σ = 127882682161770. Its totient is φ = 22001321662080.

The previous prime is 55003304155381. The next prime is 55003304155417. The reversal of 55003304155400 is 455140330055.

It can be written as a sum of positive squares in 3 ways, for example, as 33878010712324 + 21125293443076 = 5820482^2 + 4596226^2 .

It is a super-2 number, since 2×55003304155400² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 137508260189 + ... + 137508260588.

Almost surely, 2^{55003304155400} is an apocalyptic number.

55003304155400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55003304155400 is an abundant number, since it is smaller than the sum of its proper divisors (72879378006370).

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

55003304155400 is a wasteful number, since it uses less digits than its factorization.

55003304155400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275016520793 (or 275016520784 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 35.

Adding to 55003304155400 its reverse (455140330055), we get a palindrome (55458444485455).

The spelling of 55003304155400 in words is "fifty-five trillion, three billion, three hundred four million, one hundred fifty-five thousand, four hundred".