55286715 has 48 divisors (see below), whose sum is σ = 98671104. Its totient is φ = 26410560.

The previous prime is 55286689. The next prime is 55286723. The reversal of 55286715 is 51768255.

It is not a de Polignac number, because 55286715 - 2⁸ = 55286459 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

Its product of digits (84000) is a multiple of the sum of its prime factors (480).

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 47 ways as a sum of consecutive naturals, for example, 150462 + ... + 150828.

It is an arithmetic number, because the mean of its divisors is an integer number (2055648).

Almost surely, 2^55286715 is an apocalyptic number.

55286715 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55286715 is a deficient number, since it is larger than the sum of its proper divisors (43384389).

55286715 is a wasteful number, since it uses less digits than its factorization.

55286715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 469 counting only the distinct ones).

The product of its digits is 84000, while the sum is 39.

The square root of 55286715 is about 7435.5036816614. The cubic root of 55286715 is about 380.9549274669.

The spelling of 55286715 in words is "fifty-five million, two hundred eighty-six thousand, seven hundred fifteen".