52516220426 has 4 divisors (see below), whose sum is σ = 78774330642. Its totient is φ = 26258110212.

The previous prime is 52516220329. The next prime is 52516220461. The reversal of 52516220426 is 62402261525.

52516220426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 31169549401 + 21346671025 = 176549^2 + 146105^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13129055105 + ... + 13129055108.

Almost surely, 2^52516220426 is an apocalyptic number.

52516220426 is a deficient number, since it is larger than the sum of its proper divisors (26258110216).

52516220426 is a wasteful number, since it uses less digits than its factorization.

52516220426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26258110215.

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 52516220426 in words is "fifty-two billion, five hundred sixteen million, two hundred twenty thousand, four hundred twenty-six".