55561011548 has 24 divisors (see below), whose sum is σ = 111128241504. Its totient is φ = 23810529600.

The previous prime is 55561011533. The next prime is 55561011551. The reversal of 55561011548 is 84511016555.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582338 + ... + 670998.

It is an arithmetic number, because the mean of its divisors is an integer number (4630343396).

Almost surely, 2^55561011548 is an apocalyptic number.

It is an amenable number.

55561011548 is an abundant number, since it is smaller than the sum of its proper divisors (55567229956).

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

55561011548 is a wasteful number, since it uses less digits than its factorization.

55561011548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111053 (or 111051 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 41.

The spelling of 55561011548 in words is "fifty-five billion, five hundred sixty-one million, eleven thousand, five hundred forty-eight".