420739056725 has 24 divisors (see below), whose sum is σ = 563546034912. Its totient is φ = 309760862400.

The previous prime is 420739056721. The next prime is 420739056763. The reversal of 420739056725 is 527650937024.

It is not a de Polignac number, because 420739056725 - 2² = 420739056721 is a prime.

It is a super-3 number, since 3×420739056725³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420739056721) 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, 1847987 + ... + 2063136.

It is an arithmetic number, because the mean of its divisors is an integer number (23481084788).

Almost surely, 2^420739056725 is an apocalyptic number.

It is an amenable number.

420739056725 is a deficient number, since it is larger than the sum of its proper divisors (142806978187).

420739056725 is a wasteful number, since it uses less digits than its factorization.

420739056725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3911477 (or 3911472 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 50.

The spelling of 420739056725 in words is "four hundred twenty billion, seven hundred thirty-nine million, fifty-six thousand, seven hundred twenty-five".