252567046521 has 12 divisors (see below), whose sum is σ = 364838121648. Its totient is φ = 168369236664.

The previous prime is 252567046519. The next prime is 252567046553. The reversal of 252567046521 is 125640765252.

252567046521 is a `hidden beast` number, since 2 + 5 + 2 + 56 + 70 + 4 + 6 + 521 = 666.

It is not a de Polignac number, because 252567046521 - 2¹ = 252567046519 is a prime.

It is a super-3 number, since 3×252567046521³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (252567046561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 548535 + ... + 897788.

It is an arithmetic number, because the mean of its divisors is an integer number (30403176804).

Almost surely, 2^252567046521 is an apocalyptic number.

It is an amenable number.

252567046521 is a deficient number, since it is larger than the sum of its proper divisors (112271075127).

252567046521 is a wasteful number, since it uses less digits than its factorization.

252567046521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465732 (or 1465729 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 45.

The spelling of 252567046521 in words is "two hundred fifty-two billion, five hundred sixty-seven million, forty-six thousand, five hundred twenty-one".