55561534 has 16 divisors (see below), whose sum is σ = 95406048. Its totient is φ = 23772672.

The previous prime is 55561523. The next prime is 55561549. The reversal of 55561534 is 43516555.

It is a self number, because there is not a number n which added to its sum of digits gives 55561534.

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 7 ways as a sum of consecutive naturals, for example, 6474 + ... + 12370.

It is an arithmetic number, because the mean of its divisors is an integer number (5962878).

Almost surely, 2^55561534 is an apocalyptic number.

55561534 is a deficient number, since it is larger than the sum of its proper divisors (39844514).

55561534 is a wasteful number, since it uses less digits than its factorization.

55561534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6579.

The product of its digits is 45000, while the sum is 34.

The square root of 55561534 is about 7453.9609604559. The cubic root of 55561534 is about 381.5851009145.

The spelling of 55561534 in words is "fifty-five million, five hundred sixty-one thousand, five hundred thirty-four".