53285979552 has 96 divisors (see below), whose sum is σ = 150723441792. Its totient is φ = 16386100224.

The previous prime is 53285979497. The next prime is 53285979557. The reversal of 53285979552 is 25597958235.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-3 number, since 3×53285979552³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (53285979557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2293498 + ... + 2316614.

It is an arithmetic number, because the mean of its divisors is an integer number (1570035852).

Almost surely, 2^53285979552 is an apocalyptic number.

53285979552 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53285979552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75361720896).

53285979552 is an abundant number, since it is smaller than the sum of its proper divisors (97437462240).

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

53285979552 is a wasteful number, since it uses less digits than its factorization.

53285979552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24990 (or 24982 counting only the distinct ones).

The product of its digits is 34020000, while the sum is 60.

The spelling of 53285979552 in words is "fifty-three billion, two hundred eighty-five million, nine hundred seventy-nine thousand, five hundred fifty-two".