520140452241251 has 16 divisors (see below), whose sum is σ = 525151785963168. Its totient is φ = 515154365164800.

The previous prime is 520140452241191. The next prime is 520140452241269. The reversal of 520140452241251 is 152142254041025.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520140452241251 is a prime.

It is a super-2 number, since 2×520140452241251² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520140452541251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78017456 + ... + 84421586.

It is an arithmetic number, because the mean of its divisors is an integer number (32821986622698).

Almost surely, 2^{520140452241251} is an apocalyptic number.

520140452241251 is a deficient number, since it is larger than the sum of its proper divisors (5011333721917).

520140452241251 is a wasteful number, since it uses less digits than its factorization.

520140452241251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6406102.

The product of its (nonzero) digits is 128000, while the sum is 38.

The spelling of 520140452241251 in words is "five hundred twenty trillion, one hundred forty billion, four hundred fifty-two million, two hundred forty-one thousand, two hundred fifty-one".