512255431025501 has 8 divisors (see below), whose sum is σ = 524750599101624. Its totient is φ = 499760316910080.

The previous prime is 512255431025461. The next prime is 512255431025537. The reversal of 512255431025501 is 105520134552215.

It can be written as a sum of positive squares in 4 ways, for example, as 14187079697476 + 498068351328025 = 3766574^2 + 22317445^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 512255431025501 - 2⁴² = 507857384514397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512255421025501) 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, 6069335 + ... + 32578331.

It is an arithmetic number, because the mean of its divisors is an integer number (65593824887703).

Almost surely, 2^{512255431025501} is an apocalyptic number.

It is an amenable number.

512255431025501 is a deficient number, since it is larger than the sum of its proper divisors (12495168076123).

512255431025501 is a wasteful number, since it uses less digits than its factorization.

512255431025501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26980351.

The product of its (nonzero) digits is 300000, while the sum is 41.

Adding to 512255431025501 its reverse (105520134552215), we get a palindrome (617775565577716).

The spelling of 512255431025501 in words is "five hundred twelve trillion, two hundred fifty-five billion, four hundred thirty-one million, twenty-five thousand, five hundred one".