503242251 has 16 divisors (see below), whose sum is σ = 694609920. Its totient is φ = 323746560.

The previous prime is 503242219. The next prime is 503242283. The reversal of 503242251 is 152242305.

It is an interprime number because it is at equal distance from previous prime (503242219) and next prime (503242283).

It is not a de Polignac number, because 503242251 - 2⁵ = 503242219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (503242951) 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, 25851 + ... + 40923.

It is an arithmetic number, because the mean of its divisors is an integer number (43413120).

Almost surely, 2^503242251 is an apocalyptic number.

503242251 is a deficient number, since it is larger than the sum of its proper divisors (191367669).

503242251 is a wasteful number, since it uses less digits than its factorization.

503242251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15466.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 503242251 is about 22433.0615610086. The cubic root of 503242251 is about 795.4124152652.

Adding to 503242251 its reverse (152242305), we get a palindrome (655484556).

The spelling of 503242251 in words is "five hundred three million, two hundred forty-two thousand, two hundred fifty-one".