55505505525 has 12 divisors (see below), whose sum is σ = 91769102592. Its totient is φ = 29602936240.

The previous prime is 55505505511. The next prime is 55505505569. The reversal of 55505505525 is 52550550555.

It is not a de Polignac number, because 55505505525 - 2¹¹ = 55505503477 is a prime.

It is a super-2 number, since 2×55505505525² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 370036629 + ... + 370036778.

It is an arithmetic number, because the mean of its divisors is an integer number (7647425216).

Almost surely, 2^55505505525 is an apocalyptic number.

It is an amenable number.

55505505525 is a deficient number, since it is larger than the sum of its proper divisors (36263597067).

55505505525 is a wasteful number, since it uses less digits than its factorization.

55505505525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740073420 (or 740073415 counting only the distinct ones).

The product of its (nonzero) digits is 781250, while the sum is 42.

The spelling of 55505505525 in words is "fifty-five billion, five hundred five million, five hundred five thousand, five hundred twenty-five".