55161315048 has 256 divisors, whose sum is σ = 167795712000. Its totient is φ = 14776473600.

The previous prime is 55161315017. The next prime is 55161315049. The reversal of 55161315048 is 84051316155.

It is a happy number.

It is a super-2 number, since 2×55161315048² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55161314997 and 55161315015.

It is not an unprimeable number, because it can be changed into a prime (55161315049) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 54132283 + ... + 54133301.

It is an arithmetic number, because the mean of its divisors is an integer number (655452000).

Almost surely, 2^55161315048 is an apocalyptic number.

55161315048 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55161315048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83897856000).

55161315048 is an abundant number, since it is smaller than the sum of its proper divisors (112634396952).

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

55161315048 is a wasteful number, since it uses less digits than its factorization.

55161315048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376 (or 1372 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 39.

The spelling of 55161315048 in words is "fifty-five billion, one hundred sixty-one million, three hundred fifteen thousand, forty-eight".