501151601 has 4 divisors (see below), whose sum is σ = 501200100. Its totient is φ = 501103104.

The previous prime is 501151571. The next prime is 501151633. The reversal of 501151601 is 106151105.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 219750976 + 281400625 = 14824^2 + 16775^2 .

It is a cyclic number.

It is not a de Polignac number, because 501151601 - 2²⁶ = 434042737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501151681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1856 + ... + 31713.

It is an arithmetic number, because the mean of its divisors is an integer number (125300025).

Almost surely, 2^501151601 is an apocalyptic number.

It is an amenable number.

501151601 is a deficient number, since it is larger than the sum of its proper divisors (48499).

501151601 is a wasteful number, since it uses less digits than its factorization.

501151601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48498.

The product of its (nonzero) digits is 150, while the sum is 20.

The square root of 501151601 is about 22386.4155460404. The cubic root of 501151601 is about 794.3094096420.

The spelling of 501151601 in words is "five hundred one million, one hundred fifty-one thousand, six hundred one".