55150011 has 32 divisors (see below), whose sum is σ = 94315520. Its totient is φ = 31197312.

The previous prime is 55150001. The next prime is 55150013. The reversal of 55150011 is 11005155.

It is not a de Polignac number, because 55150011 - 2¹⁰ = 55148987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55150013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18051 + ... + 20883.

It is an arithmetic number, because the mean of its divisors is an integer number (2947360).

Almost surely, 2^55150011 is an apocalyptic number.

55150011 is a deficient number, since it is larger than the sum of its proper divisors (39165509).

55150011 is a wasteful number, since it uses less digits than its factorization.

55150011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2952 (or 2946 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 18.

The square root of 55150011 is about 7426.3053398039. The cubic root of 55150011 is about 380.6406805159.

Adding to 55150011 its reverse (11005155), we get a palindrome (66155166).

The spelling of 55150011 in words is "fifty-five million, one hundred fifty thousand, eleven".