15948655 has 4 divisors (see below), whose sum is σ = 19138392. Its totient is φ = 12758920.

The previous prime is 15948629. The next prime is 15948661. The reversal of 15948655 is 55684951.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55684951 = 7 ⋅7954993.

It is a de Polignac number, because none of the positive numbers 2^k-15948655 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1594861 + ... + 1594870.

It is an arithmetic number, because the mean of its divisors is an integer number (4784598).

Almost surely, 2^15948655 is an apocalyptic number.

15948655 is a deficient number, since it is larger than the sum of its proper divisors (3189737).

15948655 is an equidigital number, since it uses as much as digits as its factorization.

15948655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3189736.

The product of its digits is 216000, while the sum is 43.

The square root of 15948655 is about 3993.5767176805. The cubic root of 15948655 is about 251.7143767760.

The spelling of 15948655 in words is "fifteen million, nine hundred forty-eight thousand, six hundred fifty-five".