55142415123520 has 56 divisors (see below), whose sum is σ = 131568925852224. Its totient is φ = 22013115158016.

The previous prime is 55142415123517. The next prime is 55142415123529. The reversal of 55142415123520 is 2532151424155.

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

It is not an unprimeable number, because it can be changed into a prime (55142415123529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171131334 + ... + 171453253.

It is an arithmetic number, because the mean of its divisors is an integer number (2349445104504).

Almost surely, 2^{55142415123520} is an apocalyptic number.

It is an amenable number.

55142415123520 is an abundant number, since it is smaller than the sum of its proper divisors (76426510728704).

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

55142415123520 is a wasteful number, since it uses less digits than its factorization.

55142415123520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342585107 (or 342585097 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 40.

Adding to 55142415123520 its reverse (2532151424155), we get a palindrome (57674566547675).

The spelling of 55142415123520 in words is "fifty-five trillion, one hundred forty-two billion, four hundred fifteen million, one hundred twenty-three thousand, five hundred twenty".