55450311 has 24 divisors (see below), whose sum is σ = 91067760. Its totient is φ = 29820672.

The previous prime is 55450301. The next prime is 55450319. The reversal of 55450311 is 11305455.

It is not a de Polignac number, because 55450311 - 2⁵ = 55450279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55450319) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8596 + ... + 13593.

It is an arithmetic number, because the mean of its divisors is an integer number (3794490).

Almost surely, 2^55450311 is an apocalyptic number.

55450311 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

55450311 is a deficient number, since it is larger than the sum of its proper divisors (35617449).

55450311 is a wasteful number, since it uses less digits than its factorization.

55450311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22223 (or 22216 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 55450311 is about 7446.4965587852. The cubic root of 55450311 is about 381.3303119887.

Adding to 55450311 its reverse (11305455), we get a palindrome (66755766).

The spelling of 55450311 in words is "fifty-five million, four hundred fifty thousand, three hundred eleven".