52223542521 has 16 divisors (see below), whose sum is σ = 70775812800. Its totient is φ = 34248080448.

The previous prime is 52223542487. The next prime is 52223542531. The reversal of 52223542521 is 12524532225.

It is not a de Polignac number, because 52223542521 - 2¹³ = 52223534329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52223542531) 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, 529026 + ... + 619931.

It is an arithmetic number, because the mean of its divisors is an integer number (4423488300).

Almost surely, 2^52223542521 is an apocalyptic number.

It is an amenable number.

52223542521 is a deficient number, since it is larger than the sum of its proper divisors (18552270279).

52223542521 is a wasteful number, since it uses less digits than its factorization.

52223542521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149208.

The product of its digits is 48000, while the sum is 33.

The spelling of 52223542521 in words is "fifty-two billion, two hundred twenty-three million, five hundred forty-two thousand, five hundred twenty-one".