53485397280 has 1152 divisors, whose sum is σ = 234558374400. Its totient is φ = 11308695552.

The previous prime is 53485397261. The next prime is 53485397299. The reversal of 53485397280 is 8279358435.

53485397280 is a `hidden beast` number, since 5 + 34 + 8 + 539 + 72 + 8 + 0 = 666.

53485397280 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 (53485397261) and next prime (53485397299).

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

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 320271757 + ... + 320271923.

It is an arithmetic number, because the mean of its divisors is an integer number (203609700).

Almost surely, 2^53485397280 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 53485397280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117279187200).

53485397280 is an abundant number, since it is smaller than the sum of its proper divisors (181072977120).

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

53485397280 is a wasteful number, since it uses less digits than its factorization.

53485397280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 290 counting only the distinct ones).

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

The spelling of 53485397280 in words is "fifty-three billion, four hundred eighty-five million, three hundred ninety-seven thousand, two hundred eighty".