55605507 has 8 divisors (see below), whose sum is σ = 74307600. Its totient is φ = 36986880.

The previous prime is 55605503. The next prime is 55605523. The reversal of 55605507 is 70550655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55605507 - 2² = 55605503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55605503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19294 + ... + 21987.

It is an arithmetic number, because the mean of its divisors is an integer number (9288450).

Almost surely, 2^55605507 is an apocalyptic number.

55605507 is a deficient number, since it is larger than the sum of its proper divisors (18702093).

55605507 is a wasteful number, since it uses less digits than its factorization.

55605507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41733.

The product of its (nonzero) digits is 26250, while the sum is 33.

The square root of 55605507 is about 7456.9100168904. The cubic root of 55605507 is about 381.6857401866.

The spelling of 55605507 in words is "fifty-five million, six hundred five thousand, five hundred seven".