420241646525 has 12 divisors (see below), whose sum is σ = 522460227072. Its totient is φ = 335315520240.

The previous prime is 420241646509. The next prime is 420241646567. The reversal of 420241646525 is 525646142024.

It is not a de Polignac number, because 420241646525 - 2⁴ = 420241646509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21935159 + ... + 21954308.

It is an arithmetic number, because the mean of its divisors is an integer number (43538352256).

Almost surely, 2^420241646525 is an apocalyptic number.

It is an amenable number.

420241646525 is a deficient number, since it is larger than the sum of its proper divisors (102218580547).

420241646525 is a wasteful number, since it uses less digits than its factorization.

420241646525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43889860 (or 43889855 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 41.

Adding to 420241646525 its reverse (525646142024), we get a palindrome (945887788549).

The spelling of 420241646525 in words is "four hundred twenty billion, two hundred forty-one million, six hundred forty-six thousand, five hundred twenty-five".