55505611 has 8 divisors (see below), whose sum is σ = 63482624. Its totient is φ = 47540520.

The previous prime is 55505609. The next prime is 55505621. The reversal of 55505611 is 11650555.

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

It is a cyclic number.

It is not a de Polignac number, because 55505611 - 2¹ = 55505609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55505611.

It is not an unprimeable number, because it can be changed into a prime (55505621) 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, 12106 + ... + 16048.

It is an arithmetic number, because the mean of its divisors is an integer number (7935328).

Almost surely, 2^55505611 is an apocalyptic number.

55505611 is a deficient number, since it is larger than the sum of its proper divisors (7977013).

55505611 is a wasteful number, since it uses less digits than its factorization.

55505611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5961.

The product of its (nonzero) digits is 3750, while the sum is 28.

The square root of 55505611 is about 7450.2087890206. The cubic root of 55505611 is about 381.4570354138.

The spelling of 55505611 in words is "fifty-five million, five hundred five thousand, six hundred eleven".