520742247025 has 48 divisors (see below), whose sum is σ = 866981259648. Its totient is φ = 299647872000.

The previous prime is 520742247023. The next prime is 520742247037.

520742247025 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 520742247025 - 2¹ = 520742247023 is a prime.

It is a super-2 number, since 2×520742247025² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (520742247023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10379416 + ... + 10429465.

It is an arithmetic number, because the mean of its divisors is an integer number (18062109576).

Almost surely, 2^520742247025 is an apocalyptic number.

520742247025 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

520742247025 is a deficient number, since it is larger than the sum of its proper divisors (346239012623).

520742247025 is a wasteful number, since it uses less digits than its factorization.

520742247025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20808922 (or 20808917 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 40.

It can be divided in two parts, 520742 and 247025, that added together give a palindrome (767767).

The spelling of 520742247025 in words is "five hundred twenty billion, seven hundred forty-two million, two hundred forty-seven thousand, twenty-five".