8501245457 has 4 divisors (see below), whose sum is σ = 8501430756. Its totient is φ = 8501060160.

The previous prime is 8501245439. The next prime is 8501245463. The reversal of 8501245457 is 7545421058.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1344762241 + 7156483216 = 36671^2 + 84596^2 .

It is a cyclic number.

It is not a de Polignac number, because 8501245457 - 2¹⁸ = 8500983313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8501245427) 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, 32693 + ... + 134429.

It is an arithmetic number, because the mean of its divisors is an integer number (2125357689).

Almost surely, 2^8501245457 is an apocalyptic number.

It is an amenable number.

8501245457 is a deficient number, since it is larger than the sum of its proper divisors (185299).

8501245457 is a wasteful number, since it uses less digits than its factorization.

8501245457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185298.

The product of its (nonzero) digits is 224000, while the sum is 41.

The square root of 8501245457 is about 92202.1987644546. The cubic root of 8501245457 is about 2040.9272230695.

The spelling of 8501245457 in words is "eight billion, five hundred one million, two hundred forty-five thousand, four hundred fifty-seven".