55542454100 has 72 divisors (see below), whose sum is σ = 138188738688. Its totient is φ = 18981820800.

The previous prime is 55542454063. The next prime is 55542454109. The reversal of 55542454100 is 145424555.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55542454109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90134 + ... + 345266.

Almost surely, 2^55542454100 is an apocalyptic number.

55542454100 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 55542454100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69094369344).

55542454100 is an abundant number, since it is smaller than the sum of its proper divisors (82646284588).

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

55542454100 is a wasteful number, since it uses less digits than its factorization.

55542454100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255465 (or 255458 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 35.

Adding to 55542454100 its reverse (145424555), we get a palindrome (55687878655).

The spelling of 55542454100 in words is "fifty-five billion, five hundred forty-two million, four hundred fifty-four thousand, one hundred".