55112533040 has 80 divisors (see below), whose sum is σ = 133564448352. Its totient is φ = 21128988672.

The previous prime is 55112533037. The next prime is 55112533061. The reversal of 55112533040 is 4033521155.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 55112532994 and 55112533012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59372 + ... + 337268.

Almost surely, 2^55112533040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55112533040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66782224176).

55112533040 is an abundant number, since it is smaller than the sum of its proper divisors (78451915312).

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

55112533040 is a wasteful number, since it uses less digits than its factorization.

55112533040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278014 (or 278008 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 55112533040 in words is "fifty-five billion, one hundred twelve million, five hundred thirty-three thousand, forty".