55301040 has 120 divisors (see below), whose sum is σ = 188023680. Its totient is φ = 14564352.

The previous prime is 55301021. The next prime is 55301047. The reversal of 55301040 is 4010355.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (55301047) 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, 63649 + ... + 64511.

It is an arithmetic number, because the mean of its divisors is an integer number (1566864).

Almost surely, 2^55301040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55301040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94011840).

55301040 is an abundant number, since it is smaller than the sum of its proper divisors (132722640).

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

55301040 is a wasteful number, since it uses less digits than its factorization.

55301040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971 (or 962 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 55301040 is about 7436.4669030394. The cubic root of 55301040 is about 380.9878269201.

Adding to 55301040 its reverse (4010355), we get a palindrome (59311395).

The spelling of 55301040 in words is "fifty-five million, three hundred one thousand, forty".