13001550 has 24 divisors (see below), whose sum is σ = 32244216. Its totient is φ = 3467040.

The previous prime is 13001543. The next prime is 13001557. The reversal of 13001550 is 5510031.

13001550 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13001543) and next prime (13001557).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13001557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43189 + ... + 43488.

It is an arithmetic number, because the mean of its divisors is an integer number (1343509).

Almost surely, 2^13001550 is an apocalyptic number.

13001550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13001550 is an abundant number, since it is smaller than the sum of its proper divisors (19242666).

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

13001550 is a wasteful number, since it uses less digits than its factorization.

13001550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86692 (or 86687 counting only the distinct ones).

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

The square root of 13001550 is about 3605.7662153834. The cubic root of 13001550 is about 235.1428134488.

Adding to 13001550 its reverse (5510031), we get a palindrome (18511581).

It can be divided in two parts, 1300 and 1550, that added together give a triangular number (2850 = T₇₅).

The spelling of 13001550 in words is "thirteen million, one thousand, five hundred fifty".