13555401 has 8 divisors (see below), whose sum is σ = 18657024. Its totient is φ = 8745360.

The previous prime is 13555361. The next prime is 13555403. The reversal of 13555401 is 10455531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13555401 - 2⁶ = 13555337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13555403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72786 + ... + 72971.

It is an arithmetic number, because the mean of its divisors is an integer number (2332128).

Almost surely, 2^13555401 is an apocalyptic number.

It is an amenable number.

13555401 is a deficient number, since it is larger than the sum of its proper divisors (5101623).

13555401 is a wasteful number, since it uses less digits than its factorization.

13555401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145791.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 13555401 is about 3681.7660164655. The cubic root of 13555401 is about 238.4354303095.

The spelling of 13555401 in words is "thirteen million, five hundred fifty-five thousand, four hundred one".