505601124251 has 6 divisors (see below), whose sum is σ = 537091852020. Its totient is φ = 475859881376.

The previous prime is 505601124247. The next prime is 505601124337. The reversal of 505601124251 is 152421106505.

It is not a de Polignac number, because 505601124251 - 2² = 505601124247 is a prime.

It is a super-3 number, since 3×505601124251³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505601124221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 874742141 + ... + 874742718.

It is an arithmetic number, because the mean of its divisors is an integer number (89515308670).

Almost surely, 2^505601124251 is an apocalyptic number.

505601124251 is a deficient number, since it is larger than the sum of its proper divisors (31490727769).

505601124251 is a wasteful number, since it uses less digits than its factorization.

505601124251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749484893 (or 1749484876 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 32.

The spelling of 505601124251 in words is "five hundred five billion, six hundred one million, one hundred twenty-four thousand, two hundred fifty-one".