13915560 has 32 divisors (see below), whose sum is σ = 41747040. Its totient is φ = 3710784.

The previous prime is 13915553. The next prime is 13915567. The reversal of 13915560 is 6551931.

It is an interprime number because it is at equal distance from previous prime (13915553) and next prime (13915567).

It is a super-2 number, since 2×13915560² = 387285620227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (13915567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57862 + ... + 58101.

It is an arithmetic number, because the mean of its divisors is an integer number (1304595).

Almost surely, 2^13915560 is an apocalyptic number.

13915560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13915560 is an abundant number, since it is smaller than the sum of its proper divisors (27831480).

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

13915560 is a wasteful number, since it uses less digits than its factorization.

13915560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115977 (or 115973 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 13915560 is about 3730.3565513232. The cubic root of 13915560 is about 240.5286955933.

The spelling of 13915560 in words is "thirteen million, nine hundred fifteen thousand, five hundred sixty".