55453253140 has 24 divisors (see below), whose sum is σ = 117760282920. Its totient is φ = 21932072448.

The previous prime is 55453253099. The next prime is 55453253179. The reversal of 55453253140 is 4135235455.

55453253140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 616727556 + 54836525584 = 24834^2 + 234172^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55453253140.

It is a congruent number.

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, 15574977 + ... + 15578536.

It is an arithmetic number, because the mean of its divisors is an integer number (4906678455).

Almost surely, 2^55453253140 is an apocalyptic number.

It is an amenable number.

55453253140 is an abundant number, since it is smaller than the sum of its proper divisors (62307029780).

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

55453253140 is a wasteful number, since it uses less digits than its factorization.

55453253140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31153611 (or 31153609 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 37.

Adding to 55453253140 its reverse (4135235455), we get a palindrome (59588488595).

The spelling of 55453253140 in words is "fifty-five billion, four hundred fifty-three million, two hundred fifty-three thousand, one hundred forty".