420150520552 has 32 divisors (see below), whose sum is σ = 922281635520. Its totient is φ = 175672690560.

The previous prime is 420150520547. The next prime is 420150520561. The reversal of 420150520552 is 255025051024.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91493898 + ... + 91498489.

It is an arithmetic number, because the mean of its divisors is an integer number (28821301110).

Almost surely, 2^420150520552 is an apocalyptic number.

It is an amenable number.

420150520552 is an abundant number, since it is smaller than the sum of its proper divisors (502131114968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420150520552 is a wasteful number, since it uses less digits than its factorization.

420150520552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182992441 (or 182992437 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 31.

Adding to 420150520552 its reverse (255025051024), we get a palindrome (675175571576).

The spelling of 420150520552 in words is "four hundred twenty billion, one hundred fifty million, five hundred twenty thousand, five hundred fifty-two".