55883515 has 4 divisors (see below), whose sum is σ = 67060224. Its totient is φ = 44706808.

The previous prime is 55883507. The next prime is 55883519. The reversal of 55883515 is 51538855.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51538855 = 5 ⋅10307771.

It is a cyclic number.

It is not a de Polignac number, because 55883515 - 2³ = 55883507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55883519) by changing a digit.

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, 5588347 + ... + 5588356.

It is an arithmetic number, because the mean of its divisors is an integer number (16765056).

Almost surely, 2^55883515 is an apocalyptic number.

55883515 is a deficient number, since it is larger than the sum of its proper divisors (11176709).

55883515 is a wasteful number, since it uses less digits than its factorization.

55883515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11176708.

The product of its digits is 120000, while the sum is 40.

The square root of 55883515 is about 7475.5277405679. The cubic root of 55883515 is about 382.3207812352.

The spelling of 55883515 in words is "fifty-five million, eight hundred eighty-three thousand, five hundred fifteen".