55561006 has 16 divisors (see below), whose sum is σ = 84498480. Its totient is φ = 27397440.

The previous prime is 55561001. The next prime is 55561043. The reversal of 55561006 is 60016555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55561001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60805 + ... + 61711.

It is an arithmetic number, because the mean of its divisors is an integer number (5281155).

Almost surely, 2^55561006 is an apocalyptic number.

55561006 is a deficient number, since it is larger than the sum of its proper divisors (28937474).

55561006 is a wasteful number, since it uses less digits than its factorization.

55561006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 55561006 is about 7453.9255429606. The cubic root of 55561006 is about 381.5838921792.

The spelling of 55561006 in words is "fifty-five million, five hundred sixty-one thousand, six".