55259212889088 has 264 divisors, whose sum is σ = 173605124089488. Its totient is φ = 16827544240128.

The previous prime is 55259212889081. The next prime is 55259212889099. The reversal of 55259212889088 is 88098821295255.

55259212889088 is a `hidden beast` number, since 5 + 5 + 2 + 592 + 1 + 28 + 8 + 9 + 0 + 8 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55259212889081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9243895 + ... + 13998857.

Almost surely, 2^{55259212889088} 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 55259212889088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86802562044744).

55259212889088 is an abundant number, since it is smaller than the sum of its proper divisors (118345911200400).

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

55259212889088 is a wasteful number, since it uses less digits than its factorization.

55259212889088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4755099 (or 4755078 counting only the distinct ones).

The product of its (nonzero) digits is 331776000, while the sum is 72.

The spelling of 55259212889088 in words is "fifty-five trillion, two hundred fifty-nine billion, two hundred twelve million, eight hundred eighty-nine thousand, eighty-eight".