55311150440 has 64 divisors (see below), whose sum is σ = 153169349760. Its totient is φ = 17505066240.

The previous prime is 55311150413. The next prime is 55311150457. The reversal of 55311150440 is 4405111355.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7594046 + ... + 7601325.

It is an arithmetic number, because the mean of its divisors is an integer number (2393271090).

Almost surely, 2^55311150440 is an apocalyptic number.

It is an amenable number.

55311150440 is an abundant number, since it is smaller than the sum of its proper divisors (97858199320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55311150440 is a wasteful number, since it uses less digits than its factorization.

55311150440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15195402 (or 15195398 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 55311150440 its reverse (4405111355), we get a palindrome (59716261795).

The spelling of 55311150440 in words is "fifty-five billion, three hundred eleven million, one hundred fifty thousand, four hundred forty".