201257480507 has 4 divisors (see below), whose sum is σ = 201944366400. Its totient is φ = 200570594616.

The previous prime is 201257480503. The next prime is 201257480513. The reversal of 201257480507 is 705084752102.

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 201257480507 - 2² = 201257480503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201257480503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343442507 + ... + 343443092.

It is an arithmetic number, because the mean of its divisors is an integer number (50486091600).

Almost surely, 2^201257480507 is an apocalyptic number.

201257480507 is a deficient number, since it is larger than the sum of its proper divisors (686885893).

201257480507 is an equidigital number, since it uses as much as digits as its factorization.

201257480507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686885892.

The product of its (nonzero) digits is 156800, while the sum is 41.

The spelling of 201257480507 in words is "two hundred one billion, two hundred fifty-seven million, four hundred eighty thousand, five hundred seven".