52901393945 has 4 divisors (see below), whose sum is σ = 63481672740. Its totient is φ = 42321115152.

The previous prime is 52901393939. The next prime is 52901393989. The reversal of 52901393945 is 54939310925.

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

It can be written as a sum of positive squares in 2 ways, for example, as 22350549001 + 30550844944 = 149501^2 + 174788^2 .

It is a cyclic number.

It is not a de Polignac number, because 52901393945 - 2¹⁶ = 52901328409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52901393893 and 52901393902.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5290139390 + ... + 5290139399.

It is an arithmetic number, because the mean of its divisors is an integer number (15870418185).

Almost surely, 2^52901393945 is an apocalyptic number.

It is an amenable number.

52901393945 is a deficient number, since it is larger than the sum of its proper divisors (10580278795).

52901393945 is a wasteful number, since it uses less digits than its factorization.

52901393945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10580278794.

The product of its (nonzero) digits is 1312200, while the sum is 50.

The spelling of 52901393945 in words is "fifty-two billion, nine hundred one million, three hundred ninety-three thousand, nine hundred forty-five".