55310340 has 24 divisors (see below), whose sum is σ = 154869120. Its totient is φ = 14749408.

The previous prime is 55310329. The next prime is 55310351. The reversal of 55310340 is 4301355.

It is an interprime number because it is at equal distance from previous prime (55310329) and next prime (55310351).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460860 + ... + 460979.

It is an arithmetic number, because the mean of its divisors is an integer number (6452880).

Almost surely, 2^55310340 is an apocalyptic number.

It is an amenable number.

55310340 is an abundant number, since it is smaller than the sum of its proper divisors (99558780).

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

55310340 is a wasteful number, since it uses less digits than its factorization.

55310340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921851 (or 921849 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 55310340 is about 7437.0921736926. The cubic root of 55310340 is about 381.0091826859.

Adding to 55310340 its reverse (4301355), we get a palindrome (59611695).

The spelling of 55310340 in words is "fifty-five million, three hundred ten thousand, three hundred forty".