420273528056 has 16 divisors (see below), whose sum is σ = 788861116800. Its totient is φ = 209910563584.

The previous prime is 420273528043. The next prime is 420273528127. The reversal of 420273528056 is 650825372024.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 420273527998 and 420273528016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28267160 + ... + 28282023.

It is an arithmetic number, because the mean of its divisors is an integer number (49303819800).

Almost surely, 2^420273528056 is an apocalyptic number.

It is an amenable number.

420273528056 is a deficient number, since it is larger than the sum of its proper divisors (368587588744).

420273528056 is a wasteful number, since it uses less digits than its factorization.

420273528056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56550118 (or 56550114 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 44.

The spelling of 420273528056 in words is "four hundred twenty billion, two hundred seventy-three million, five hundred twenty-eight thousand, fifty-six".