524120021425 has 72 divisors (see below), whose sum is σ = 879215962688. Its totient is φ = 301591382400.

The previous prime is 524120021389. The next prime is 524120021441.

It is a happy number.

524120021425 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 524120021425 - 2¹¹ = 524120019377 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 524120021393 and 524120021402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 676719 + ... + 1227268.

Almost surely, 2^524120021425 is an apocalyptic number.

524120021425 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

524120021425 is a deficient number, since it is larger than the sum of its proper divisors (355095941263).

524120021425 is a wasteful number, since it uses less digits than its factorization.

524120021425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904039 (or 1904023 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

It can be divided in two parts, 5241200 and 21425, that added together give a palindrome (5262625).

The spelling of 524120021425 in words is "five hundred twenty-four billion, one hundred twenty million, twenty-one thousand, four hundred twenty-five".