53221542340 has 12 divisors (see below), whose sum is σ = 111765238956. Its totient is φ = 21288616928.

The previous prime is 53221542317. The next prime is 53221542343. The reversal of 53221542340 is 4324512235.

It can be written as a sum of positive squares in 2 ways, for example, as 13995363204 + 39226179136 = 118302^2 + 198056^2 .

It is not an unprimeable number, because it can be changed into a prime (53221542343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1330538539 + ... + 1330538578.

It is an arithmetic number, because the mean of its divisors is an integer number (9313769913).

Almost surely, 2^53221542340 is an apocalyptic number.

It is an amenable number.

53221542340 is an abundant number, since it is smaller than the sum of its proper divisors (58543696616).

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

53221542340 is a wasteful number, since it uses less digits than its factorization.

53221542340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2661077126 (or 2661077124 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

The spelling of 53221542340 in words is "fifty-three billion, two hundred twenty-one million, five hundred forty-two thousand, three hundred forty".