55135505525 has 6 divisors (see below), whose sum is σ = 68368026882. Its totient is φ = 44108404400.

The previous prime is 55135505501. The next prime is 55135505569. The reversal of 55135505525 is 52550553155.

55135505525 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 3 ways, for example, as 9705993361 + 45429512164 = 98519^2 + 213142^2 .

It is a de Polignac number, because none of the positive numbers 2^k-55135505525 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1102710086 + ... + 1102710135.

It is an arithmetic number, because the mean of its divisors is an integer number (11394671147).

Almost surely, 2^55135505525 is an apocalyptic number.

It is an amenable number.

55135505525 is a deficient number, since it is larger than the sum of its proper divisors (13232521357).

55135505525 is a wasteful number, since it uses less digits than its factorization.

55135505525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205420231 (or 2205420226 counting only the distinct ones).

The product of its (nonzero) digits is 468750, while the sum is 41.

The spelling of 55135505525 in words is "fifty-five billion, one hundred thirty-five million, five hundred five thousand, five hundred twenty-five".