13555450 has 12 divisors (see below), whose sum is σ = 25213230. Its totient is φ = 5422160.

The previous prime is 13555447. The next prime is 13555453. The reversal of 13555450 is 5455531.

It is an interprime number because it is at equal distance from previous prime (13555447) and next prime (13555453).

It can be written as a sum of positive squares in 3 ways, for example, as 7017201 + 6538249 = 2649^2 + 2557^2 .

It is not an unprimeable number, because it can be changed into a prime (13555453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 135505 + ... + 135604.

Almost surely, 2^13555450 is an apocalyptic number.

13555450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13555450 is a deficient number, since it is larger than the sum of its proper divisors (11657780).

13555450 is a wasteful number, since it uses less digits than its factorization.

13555450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271121 (or 271116 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 13555450 is about 3681.7726708747. The cubic root of 13555450 is about 238.4357176076.

The spelling of 13555450 in words is "thirteen million, five hundred fifty-five thousand, four hundred fifty".