13550100 has 108 divisors (see below), whose sum is σ = 41372352. Its totient is φ = 3422400.

The previous prime is 13550093. The next prime is 13550107. The reversal of 13550100 is 105531.

It is an interprime number because it is at equal distance from previous prime (13550093) and next prime (13550107).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 13550100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13550107) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 288277 + ... + 288323.

Almost surely, 2^13550100 is an apocalyptic number.

13550100 is a gapful number since it is divisible by the number (10) 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 13550100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20686176).

13550100 is an abundant number, since it is smaller than the sum of its proper divisors (27822252).

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

13550100 is a wasteful number, since it uses less digits than its factorization.

13550100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 75, while the sum is 15.

The square root of 13550100 is about 3681.0460469818. The cubic root of 13550100 is about 238.4043452581.

Adding to 13550100 its reverse (105531), we get a palindrome (13655631).

The spelling of 13550100 in words is "thirteen million, five hundred fifty thousand, one hundred".