425742247525 has 24 divisors (see below), whose sum is σ = 603699495680. Its totient is φ = 291762423360.

The previous prime is 425742247507. The next prime is 425742247549. The reversal of 425742247525 is 525742247524.

It is not a de Polignac number, because 425742247525 - 2¹⁹ = 425741723237 is a prime.

It is a super-2 number, since 2×425742247525² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 436749 + ... + 1020898.

Almost surely, 2^425742247525 is an apocalyptic number.

It is an amenable number.

425742247525 is a deficient number, since it is larger than the sum of its proper divisors (177957248155).

425742247525 is a wasteful number, since it uses less digits than its factorization.

425742247525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459333 (or 1459328 counting only the distinct ones).

The product of its digits is 6272000, while the sum is 49.

Subtracting 425742247525 from its reverse (525742247524), we obtain a palindrome (99999999999).

The spelling of 425742247525 in words is "four hundred twenty-five billion, seven hundred forty-two million, two hundred forty-seven thousand, five hundred twenty-five".