503134642650242 has 4 divisors (see below), whose sum is σ = 754701963975366. Its totient is φ = 251567321325120.

The previous prime is 503134642650169. The next prime is 503134642650251. The reversal of 503134642650242 is 242056246431305.

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., 308754414245281 + 194380228404961 = 17571409^2 + 13942031^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125783660662559 + ... + 125783660662562.

Almost surely, 2^{503134642650242} is an apocalyptic number.

503134642650242 is a deficient number, since it is larger than the sum of its proper divisors (251567321325124).

503134642650242 is a wasteful number, since it uses less digits than its factorization.

503134642650242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251567321325123.

The product of its (nonzero) digits is 4147200, while the sum is 47.

The spelling of 503134642650242 in words is "five hundred three trillion, one hundred thirty-four billion, six hundred forty-two million, six hundred fifty thousand, two hundred forty-two".