55720725060 has 1152 divisors, whose sum is σ = 233035407360. Its totient is φ = 9634775040.

The previous prime is 55720725059. The next prime is 55720725061. The reversal of 55720725060 is 6052702755.

55720725060 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55720725059) and next prime (55720725061).

It is a super-2 number, since 2×55720725060² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (55720725061) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 288708324 + ... + 288708516.

It is an arithmetic number, because the mean of its divisors is an integer number (202287680).

Almost surely, 2^55720725060 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 55720725060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116517703680).

55720725060 is an abundant number, since it is smaller than the sum of its proper divisors (177314682300).

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

55720725060 is a wasteful number, since it uses less digits than its factorization.

55720725060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 147000, while the sum is 39.

The spelling of 55720725060 in words is "fifty-five billion, seven hundred twenty million, seven hundred twenty-five thousand, sixty".