55152452353140 has 72 divisors (see below), whose sum is σ = 167317820790120. Its totient is φ = 14705382284544.

The previous prime is 55152452353123. The next prime is 55152452353189. The reversal of 55152452353140 is 4135325425155.

55152452353140 is a `hidden beast` number, since 5 + 5 + 1 + 5 + 2 + 452 + 3 + 53 + 140 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4757048896356 + 50395403456784 = 2181066^2 + 7098972^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18821259 + ... + 21553298.

It is an arithmetic number, because the mean of its divisors is an integer number (2323858622085).

Almost surely, 2^{55152452353140} is an apocalyptic number.

It is an amenable number.

55152452353140 is an abundant number, since it is smaller than the sum of its proper divisors (112165368436980).

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

55152452353140 is a wasteful number, since it uses less digits than its factorization.

55152452353140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40382161 (or 40382156 counting only the distinct ones).

The product of its (nonzero) digits is 1800000, while the sum is 45.

Adding to 55152452353140 its reverse (4135325425155), we get a palindrome (59287777778295).

The spelling of 55152452353140 in words is "fifty-five trillion, one hundred fifty-two billion, four hundred fifty-two million, three hundred fifty-three thousand, one hundred forty".