503420155515097 has 8 divisors (see below), whose sum is σ = 520804623579912. Its totient is φ = 486278826864000.

The previous prime is 503420155515083. The next prime is 503420155515149. The reversal of 503420155515097 is 790515551024305.

It can be written as a sum of positive squares in 4 ways, for example, as 2603379023001 + 500816776492096 = 1613499^2 + 22378936^2 .

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 503420155515097 - 2¹⁵ = 503420155482329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (503420155515037) 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, 60784849218 + ... + 60784857499.

It is an arithmetic number, because the mean of its divisors is an integer number (65100577947489).

Almost surely, 2^{503420155515097} is an apocalyptic number.

It is an amenable number.

503420155515097 is a deficient number, since it is larger than the sum of its proper divisors (17384468064815).

503420155515097 is a wasteful number, since it uses less digits than its factorization.

503420155515097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121569706859.

The product of its (nonzero) digits is 4725000, while the sum is 52.

The spelling of 503420155515097 in words is "five hundred three trillion, four hundred twenty billion, one hundred fifty-five million, five hundred fifteen thousand, ninety-seven".