55313523401440 has 96 divisors (see below), whose sum is σ = 137558381829120. Its totient is φ = 20960551033344.

The previous prime is 55313523401431. The next prime is 55313523401473. The reversal of 55313523401440 is 4410432531355.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 55313523401393 and 55313523401402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231233577 + ... + 231472663.

It is an arithmetic number, because the mean of its divisors is an integer number (1432899810720).

Almost surely, 2^{55313523401440} is an apocalyptic number.

It is an amenable number.

55313523401440 is an abundant number, since it is smaller than the sum of its proper divisors (82244858427680).

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

55313523401440 is a wasteful number, since it uses less digits than its factorization.

55313523401440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315224 (or 315216 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 40.

Adding to 55313523401440 its reverse (4410432531355), we get a palindrome (59723955932795).

The spelling of 55313523401440 in words is "fifty-five trillion, three hundred thirteen billion, five hundred twenty-three million, four hundred one thousand, four hundred forty".