55050100400 has 60 divisors (see below), whose sum is σ = 140037757992. Its totient is φ = 20724741120.

The previous prime is 55050100397. The next prime is 55050100447. The reversal of 55050100400 is 400105055.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4041002 + ... + 4054601.

Almost surely, 2^55050100400 is an apocalyptic number.

55050100400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55050100400 is an abundant number, since it is smaller than the sum of its proper divisors (84987657592).

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

55050100400 is a wasteful number, since it uses less digits than its factorization.

55050100400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8095638 (or 8095627 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

Adding to 55050100400 its reverse (400105055), we get a palindrome (55450205455).

The spelling of 55050100400 in words is "fifty-five billion, fifty million, one hundred thousand, four hundred".