13561450 has 24 divisors (see below), whose sum is σ = 28828512. Its totient is φ = 4649520.

The previous prime is 13561439. The next prime is 13561451. The reversal of 13561450 is 5416531.

It is a super-2 number, since 2×13561450² = 367825852205000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13561451) 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, 19024 + ... + 19723.

It is an arithmetic number, because the mean of its divisors is an integer number (1201188).

Almost surely, 2^13561450 is an apocalyptic number.

13561450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13561450 is an abundant number, since it is smaller than the sum of its proper divisors (15267062).

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

13561450 is a wasteful number, since it uses less digits than its factorization.

13561450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38766 (or 38761 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 13561450 is about 3682.5874056158. The cubic root of 13561450 is about 238.4708917327.

Adding to 13561450 its reverse (5416531), we get a palindrome (18977981).

The spelling of 13561450 in words is "thirteen million, five hundred sixty-one thousand, four hundred fifty".