55626497280 has 360 divisors, whose sum is σ = 207704673792. Its totient is φ = 14188179456.

The previous prime is 55626497243. The next prime is 55626497281. The reversal of 55626497280 is 8279462655.

55626497280 is a `hidden beast` number, since 5 + 5 + 626 + 4 + 9 + 7 + 2 + 8 + 0 = 666.

55626497280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55626497281) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2372977 + ... + 2396303.

Almost surely, 2^55626497280 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 55626497280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103852336896).

55626497280 is an abundant number, since it is smaller than the sum of its proper divisors (152078176512).

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

55626497280 is a wasteful number, since it uses less digits than its factorization.

55626497280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23383 (or 23360 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 55626497280 in words is "fifty-five billion, six hundred twenty-six million, four hundred ninety-seven thousand, two hundred eighty".