331420552 has 8 divisors (see below), whose sum is σ = 621413550. Its totient is φ = 165710272.

The previous prime is 331420541. The next prime is 331420561. The reversal of 331420552 is 255024133.

It can be written as a sum of positive squares in only one way, i.e., 207187236 + 124233316 = 14394^2 + 11146^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20713777 + ... + 20713792.

Almost surely, 2^331420552 is an apocalyptic number.

It is an amenable number.

331420552 is a deficient number, since it is larger than the sum of its proper divisors (289992998).

331420552 is a wasteful number, since it uses less digits than its factorization.

331420552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41427575 (or 41427571 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 331420552 is about 18204.9595440363. The cubic root of 331420552 is about 692.0324809060.

Adding to 331420552 its reverse (255024133), we get a palindrome (586444685).

The spelling of 331420552 in words is "three hundred thirty-one million, four hundred twenty thousand, five hundred fifty-two".