501613205353042 has 4 divisors (see below), whose sum is σ = 752419808029566. Its totient is φ = 250806602676520.

The previous prime is 501613205352949. The next prime is 501613205353049. The reversal of 501613205353042 is 240353502316105.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 417598584282441 + 84014621070601 = 20435229^2 + 9165949^2 .

It is a junction number, because it is equal to n+sod(n) for n = 501613205352986 and 501613205353004.

It is not an unprimeable number, because it can be changed into a prime (501613205353049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125403301338259 + ... + 125403301338262.

Almost surely, 2^{501613205353042} is an apocalyptic number.

501613205353042 is a deficient number, since it is larger than the sum of its proper divisors (250806602676524).

501613205353042 is a wasteful number, since it uses less digits than its factorization.

501613205353042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250806602676523.

The product of its (nonzero) digits is 324000, while the sum is 40.

Adding to 501613205353042 its reverse (240353502316105), we get a palindrome (741966707669147).

The spelling of 501613205353042 in words is "five hundred one trillion, six hundred thirteen billion, two hundred five million, three hundred fifty-three thousand, forty-two".