501225398997 has 8 divisors (see below), whose sum is σ = 668304884544. Its totient is φ = 334148089728.

The previous prime is 501225398981. The next prime is 501225399043. The reversal of 501225398997 is 799893522105.

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

It is not a de Polignac number, because 501225398997 - 2⁴ = 501225398981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 501225398997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501225398797) 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, 103408 + ... + 1006550.

It is an arithmetic number, because the mean of its divisors is an integer number (83538110568).

Almost surely, 2^501225398997 is an apocalyptic number.

It is an amenable number.

501225398997 is a deficient number, since it is larger than the sum of its proper divisors (167079485547).

501225398997 is a wasteful number, since it uses less digits than its factorization.

501225398997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088139.

The product of its (nonzero) digits is 12247200, while the sum is 60.

The spelling of 501225398997 in words is "five hundred one billion, two hundred twenty-five million, three hundred ninety-eight thousand, nine hundred ninety-seven".