52254220521 has 8 divisors (see below), whose sum is σ = 69673443840. Its totient is φ = 34835572112.

The previous prime is 52254220519. The next prime is 52254220561. The reversal of 52254220521 is 12502245225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52254220521 - 2¹ = 52254220519 is a prime.

It is a super-2 number, since 2×52254220521² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52254220561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160120 + ... + 360758.

It is an arithmetic number, because the mean of its divisors is an integer number (8709180480).

Almost surely, 2^52254220521 is an apocalyptic number.

It is an amenable number.

52254220521 is a deficient number, since it is larger than the sum of its proper divisors (17419223319).

52254220521 is a wasteful number, since it uses less digits than its factorization.

52254220521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287455.

The product of its (nonzero) digits is 16000, while the sum is 30.

Adding to 52254220521 its reverse (12502245225), we get a palindrome (64756465746).

The spelling of 52254220521 in words is "fifty-two billion, two hundred fifty-four million, two hundred twenty thousand, five hundred twenty-one".