320553051 has 64 divisors (see below), whose sum is σ = 554803200. Its totient is φ = 163416960.

The previous prime is 320553041. The next prime is 320553059. The reversal of 320553051 is 150355023.

It is not a de Polignac number, because 320553051 - 2⁷ = 320552923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320553059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 414301 + ... + 415073.

It is an arithmetic number, because the mean of its divisors is an integer number (8668800).

Almost surely, 2^320553051 is an apocalyptic number.

320553051 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

320553051 is a deficient number, since it is larger than the sum of its proper divisors (234250149).

320553051 is a wasteful number, since it uses less digits than its factorization.

320553051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841 (or 827 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 320553051 is about 17903.9953920906. The cubic root of 320553051 is about 684.3841951768.

The spelling of 320553051 in words is "three hundred twenty million, five hundred fifty-three thousand, fifty-one".