42321001552 has 20 divisors (see below), whose sum is σ = 82010415060. Its totient is φ = 21157023488.

The previous prime is 42321001501. The next prime is 42321001589. The reversal of 42321001552 is 25510012324.

It can be written as a sum of positive squares in 2 ways, for example, as 1857265216 + 40463736336 = 43096^2 + 201156^2 .

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 3 ways as a sum of consecutive naturals, for example, 115477 + ... + 313012.

It is an arithmetic number, because the mean of its divisors is an integer number (4100520753).

Almost surely, 2^42321001552 is an apocalyptic number.

It is an amenable number.

42321001552 is a deficient number, since it is larger than the sum of its proper divisors (39689413508).

42321001552 is a wasteful number, since it uses less digits than its factorization.

42321001552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434670 (or 434664 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 42321001552 its reverse (25510012324), we get a palindrome (67831013876).

The spelling of 42321001552 in words is "forty-two billion, three hundred twenty-one million, one thousand, five hundred fifty-two".