501121485 has 40 divisors (see below), whose sum is σ = 945600480. Its totient is φ = 253194336.

The previous prime is 501121459. The next prime is 501121501. The reversal of 501121485 is 584121105.

501121485 is a `hidden beast` number, since 501 + 12 + 148 + 5 = 666.

It is not a de Polignac number, because 501121485 - 2⁹ = 501120973 is a prime.

It is a super-2 number, since 2×501121485² = 502245485457210450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 39 ways as a sum of consecutive naturals, for example, 24867 + ... + 40256.

It is an arithmetic number, because the mean of its divisors is an integer number (23640012).

Almost surely, 2^501121485 is an apocalyptic number.

It is an amenable number.

501121485 is a deficient number, since it is larger than the sum of its proper divisors (444478995).

501121485 is a wasteful number, since it uses less digits than its factorization.

501121485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65159 (or 65150 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 501121485 is about 22385.7428958701. The cubic root of 501121485 is about 794.2934983547.

The spelling of 501121485 in words is "five hundred one million, one hundred twenty-one thousand, four hundred eighty-five".