55633505 has 4 divisors (see below), whose sum is σ = 66760212. Its totient is φ = 44506800.

The previous prime is 55633453. The next prime is 55633531. The reversal of 55633505 is 50533655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50533655 = 5 ⋅10106731.

It can be written as a sum of positive squares in 2 ways, for example, as 17205904 + 38427601 = 4148^2 + 6199^2 .

It is not a de Polignac number, because 55633505 - 2⁶ = 55633441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5563346 + ... + 5563355.

It is an arithmetic number, because the mean of its divisors is an integer number (16690053).

Almost surely, 2^55633505 is an apocalyptic number.

It is an amenable number.

55633505 is a deficient number, since it is larger than the sum of its proper divisors (11126707).

55633505 is a wasteful number, since it uses less digits than its factorization.

55633505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11126706.

The product of its (nonzero) digits is 33750, while the sum is 32.

The square root of 55633505 is about 7458.7870997904. The cubic root of 55633505 is about 381.7497904630.

The spelling of 55633505 in words is "fifty-five million, six hundred thirty-three thousand, five hundred five".