55625859072 has 180 divisors, whose sum is σ = 183651433056. Its totient is φ = 15892807680.

The previous prime is 55625859071. The next prime is 55625859073. The reversal of 55625859072 is 27095852655.

It is a happy number.

55625859072 is a `hidden beast` number, since 5 + 5 + 625 + 8 + 5 + 9 + 0 + 7 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (55625859071) and next prime (55625859073).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55625859071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1005247 + ... + 1059137.

Almost surely, 2^55625859072 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 55625859072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91825716528).

55625859072 is an abundant number, since it is smaller than the sum of its proper divisors (128025573984).

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

55625859072 is an equidigital number, since it uses as much as digits as its factorization.

55625859072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53932 (or 53903 counting only the distinct ones).

The product of its (nonzero) digits is 7560000, while the sum is 54.

The spelling of 55625859072 in words is "fifty-five billion, six hundred twenty-five million, eight hundred fifty-nine thousand, seventy-two".