13555480 has 32 divisors (see below), whose sum is σ = 30780000. Its totient is φ = 5372416.

The previous prime is 13555471. The next prime is 13555489. The reversal of 13555480 is 8455531.

It is an interprime number because it is at equal distance from previous prime (13555471) and next prime (13555489).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13555489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3021 + ... + 6019.

It is an arithmetic number, because the mean of its divisors is an integer number (961875).

Almost surely, 2^13555480 is an apocalyptic number.

13555480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13555480 is an abundant number, since it is smaller than the sum of its proper divisors (17224520).

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

13555480 is a wasteful number, since it uses less digits than its factorization.

13555480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3123 (or 3119 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 13555480 is about 3681.7767449969. The cubic root of 13555480 is about 238.4358935041.

The spelling of 13555480 in words is "thirteen million, five hundred fifty-five thousand, four hundred eighty".