55050050000520 has 224 divisors, whose sum is σ = 187412727763800. Its totient is φ = 14545333472256.

The previous prime is 55050050000497. The next prime is 55050050000563. The reversal of 55050050000520 is 2500005005055.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 54632173084164 + 417876916356 = 7391358^2 + 646434^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 5481477 + ... + 11838356.

Almost surely, 2^{55050050000520} is an apocalyptic number.

It is an amenable number.

55050050000520 is an abundant number, since it is smaller than the sum of its proper divisors (132362677763280).

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

55050050000520 is a wasteful number, since it uses less digits than its factorization.

55050050000520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17319971 (or 17319952 counting only the distinct ones).

The product of its (nonzero) digits is 6250, while the sum is 27.

Adding to 55050050000520 its reverse (2500005005055), we get a palindrome (57550055005575).

The spelling of 55050050000520 in words is "fifty-five trillion, fifty billion, fifty million, five hundred twenty", and thus it is an aban number.