53523315266440 has 32 divisors (see below), whose sum is σ = 120525288428160. Its totient is φ = 21391934270400.

The previous prime is 53523315266417. The next prime is 53523315266483. The reversal of 53523315266440 is 4466251332535.

It is a super-2 number, since 2×53523315266440² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543445026 + ... + 543543505.

It is an arithmetic number, because the mean of its divisors is an integer number (3766415263380).

Almost surely, 2^{53523315266440} is an apocalyptic number.

It is an amenable number.

53523315266440 is an abundant number, since it is smaller than the sum of its proper divisors (67001973161720).

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

53523315266440 is a wasteful number, since it uses less digits than its factorization.

53523315266440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086989773 (or 1086989769 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 49.

Adding to 53523315266440 its reverse (4466251332535), we get a palindrome (57989566598975).

The spelling of 53523315266440 in words is "fifty-three trillion, five hundred twenty-three billion, three hundred fifteen million, two hundred sixty-six thousand, four hundred forty".