15955085 has 4 divisors (see below), whose sum is σ = 19146108. Its totient is φ = 12764064.

The previous prime is 15955063. The next prime is 15955087. The reversal of 15955085 is 58055951.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4251844 + 11703241 = 2062^2 + 3421^2 .

It is a cyclic number.

It is not a de Polignac number, because 15955085 - 2¹² = 15950989 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 (15955087) 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, 1595504 + ... + 1595513.

It is an arithmetic number, because the mean of its divisors is an integer number (4786527).

Almost surely, 2^15955085 is an apocalyptic number.

It is an amenable number.

15955085 is a deficient number, since it is larger than the sum of its proper divisors (3191023).

15955085 is an equidigital number, since it uses as much as digits as its factorization.

15955085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3191022.

The product of its (nonzero) digits is 45000, while the sum is 38.

The square root of 15955085 is about 3994.3816793091. The cubic root of 15955085 is about 251.7482000248.

The spelling of 15955085 in words is "fifteen million, nine hundred fifty-five thousand, eighty-five".