52271661453540 has 48 divisors (see below), whose sum is σ = 146837396916672. Its totient is φ = 13893705449856.

The previous prime is 52271661453511. The next prime is 52271661453541. The reversal of 52271661453540 is 4535416617225.

It is a super-2 number, since 2×52271661453540² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52271661453541) 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, 1418864899 + ... + 1418901738.

It is an arithmetic number, because the mean of its divisors is an integer number (3059112435764).

Almost surely, 2^{52271661453540} is an apocalyptic number.

It is an amenable number.

52271661453540 is an abundant number, since it is smaller than the sum of its proper divisors (94565735463132).

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

52271661453540 is a wasteful number, since it uses less digits than its factorization.

52271661453540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2837766956 (or 2837766954 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 51.

The spelling of 52271661453540 in words is "fifty-two trillion, two hundred seventy-one billion, six hundred sixty-one million, four hundred fifty-three thousand, five hundred forty".