15655413 has 4 divisors (see below), whose sum is σ = 20873888. Its totient is φ = 10436940.

The previous prime is 15655379. The next prime is 15655427. The reversal of 15655413 is 31455651.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 15655413 - 2¹⁰ = 15654389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15655463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2609233 + ... + 2609238.

It is an arithmetic number, because the mean of its divisors is an integer number (5218472).

Almost surely, 2^15655413 is an apocalyptic number.

It is an amenable number.

15655413 is a deficient number, since it is larger than the sum of its proper divisors (5218475).

15655413 is an equidigital number, since it uses as much as digits as its factorization.

15655413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5218474.

The product of its digits is 9000, while the sum is 30.

The square root of 15655413 is about 3956.6921790809. The cubic root of 15655413 is about 250.1620975415.

The spelling of 15655413 in words is "fifteen million, six hundred fifty-five thousand, four hundred thirteen".