501404224525401 has 32 divisors (see below), whose sum is σ = 721227903458688. Its totient is φ = 308667527767040.

The previous prime is 501404224525361. The next prime is 501404224525403. The reversal of 501404224525401 is 104525422404105.

It is a cyclic number.

It is not a de Polignac number, because 501404224525401 - 2¹⁴ = 501404224509017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 501404224525401.

It is not an unprimeable number, because it can be changed into a prime (501404224525403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 287435110 + ... + 289174256.

It is an arithmetic number, because the mean of its divisors is an integer number (22538371983084).

Almost surely, 2^{501404224525401} is an apocalyptic number.

501404224525401 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

501404224525401 is a deficient number, since it is larger than the sum of its proper divisors (219823678933287).

501404224525401 is a wasteful number, since it uses less digits than its factorization.

501404224525401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1845881.

The product of its (nonzero) digits is 256000, while the sum is 39.

Adding to 501404224525401 its reverse (104525422404105), we get a palindrome (605929646929506).

The spelling of 501404224525401 in words is "five hundred one trillion, four hundred four billion, two hundred twenty-four million, five hundred twenty-five thousand, four hundred one".