52220228678531 has 4 divisors (see below), whose sum is σ = 54020926219200. Its totient is φ = 50419531137864.

The previous prime is 52220228678461. The next prime is 52220228678533. The reversal of 52220228678531 is 13587682202225.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52220228678531 - 2³⁴ = 52203048809347 is a prime.

It is a super-2 number, since 2×52220228678531² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52220228678533) 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, 900348770291 + ... + 900348770348.

It is an arithmetic number, because the mean of its divisors is an integer number (13505231554800).

Almost surely, 2^{52220228678531} is an apocalyptic number.

52220228678531 is a deficient number, since it is larger than the sum of its proper divisors (1800697540669).

52220228678531 is a wasteful number, since it uses less digits than its factorization.

52220228678531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800697540668.

The product of its (nonzero) digits is 6451200, while the sum is 53.

The spelling of 52220228678531 in words is "fifty-two trillion, two hundred twenty billion, two hundred twenty-eight million, six hundred seventy-eight thousand, five hundred thirty-one".