52402020425 has 24 divisors (see below), whose sum is σ = 68776431360. Its totient is φ = 39495729600.

The previous prime is 52402020421. The next prime is 52402020427.

52402020425 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 52402020425 - 2² = 52402020421 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52402020394 and 52402020403.

It is not an unprimeable number, because it can be changed into a prime (52402020421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 218777 + ... + 390726.

It is an arithmetic number, because the mean of its divisors is an integer number (2865684640).

Almost surely, 2^52402020425 is an apocalyptic number.

It is an amenable number.

52402020425 is a deficient number, since it is larger than the sum of its proper divisors (16374410935).

52402020425 is a wasteful number, since it uses less digits than its factorization.

52402020425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609713 (or 609708 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

It can be divided in two parts, 524020 and 20425, that added together give a palindrome (544445).

The spelling of 52402020425 in words is "fifty-two billion, four hundred two million, twenty thousand, four hundred twenty-five".