55501611 has 12 divisors (see below), whose sum is σ = 81341736. Its totient is φ = 33637120.

The previous prime is 55501597. The next prime is 55501627. The reversal of 55501611 is 11610555.

It is not a de Polignac number, because 55501611 - 2⁷ = 55501483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55501631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76086 + ... + 76811.

It is an arithmetic number, because the mean of its divisors is an integer number (6778478).

Almost surely, 2^55501611 is an apocalyptic number.

55501611 is a deficient number, since it is larger than the sum of its proper divisors (25840125).

55501611 is a wasteful number, since it uses less digits than its factorization.

55501611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152922 (or 152911 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 55501611 is about 7449.9403353316. The cubic root of 55501611 is about 381.4478719871.

The spelling of 55501611 in words is "fifty-five million, five hundred one thousand, six hundred eleven".