55000135530 has 96 divisors (see below), whose sum is σ = 152041423248. Its totient is φ = 13746585600.

The previous prime is 55000135511. The next prime is 55000135549. The reversal of 55000135530 is 3553100055.

It is an interprime number because it is at equal distance from previous prime (55000135511) and next prime (55000135549).

It can be written as a sum of positive squares in 8 ways, for example, as 48049078401 + 6951057129 = 219201^2 + 83373^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55000135494 and 55000135503.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 294150 + ... + 443310.

Almost surely, 2^55000135530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55000135530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76020711624).

55000135530 is an abundant number, since it is smaller than the sum of its proper divisors (97041287718).

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

55000135530 is a wasteful number, since it uses less digits than its factorization.

55000135530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149432 (or 149429 counting only the distinct ones).

The product of its (nonzero) digits is 5625, while the sum is 27.

Adding to 55000135530 its reverse (3553100055), we get a palindrome (58553235585).

The spelling of 55000135530 in words is "fifty-five billion, one hundred thirty-five thousand, five hundred thirty".