157475257503 has 4 divisors (see below), whose sum is σ = 209967010008. Its totient is φ = 104983505000.

The previous prime is 157475257477. The next prime is 157475257519. The reversal of 157475257503 is 305752574751.

157475257503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 157475257503 - 2¹² = 157475253407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157475257523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26245876248 + ... + 26245876253.

It is an arithmetic number, because the mean of its divisors is an integer number (52491752502).

Almost surely, 2^157475257503 is an apocalyptic number.

157475257503 is a deficient number, since it is larger than the sum of its proper divisors (52491752505).

157475257503 is an equidigital number, since it uses as much as digits as its factorization.

157475257503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52491752504.

The product of its (nonzero) digits is 5145000, while the sum is 51.

The spelling of 157475257503 in words is "one hundred fifty-seven billion, four hundred seventy-five million, two hundred fifty-seven thousand, five hundred three".