501271061 has 8 divisors (see below), whose sum is σ = 549060120. Its totient is φ = 455515648.

The previous prime is 501271049. The next prime is 501271073. The reversal of 501271061 is 160172105.

It is an interprime number because it is at equal distance from previous prime (501271049) and next prime (501271073).

It can be written as a sum of positive squares in 4 ways, for example, as 39450961 + 461820100 = 6281^2 + 21490^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 501271061 - 2⁶ = 501270997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501271861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 507896 + ... + 508881.

It is an arithmetic number, because the mean of its divisors is an integer number (68632515).

Almost surely, 2^501271061 is an apocalyptic number.

It is an amenable number.

501271061 is a deficient number, since it is larger than the sum of its proper divisors (47789059).

501271061 is a wasteful number, since it uses less digits than its factorization.

501271061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016823.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 501271061 is about 22389.0835230029. The cubic root of 501271061 is about 794.3725180663.

The spelling of 501271061 in words is "five hundred one million, two hundred seventy-one thousand, sixty-one".