2498306857 has 4 divisors (see below), whose sum is σ = 2498444116. Its totient is φ = 2498169600.

The previous prime is 2498306831. The next prime is 2498306869. The reversal of 2498306857 is 7586038942.

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 1441796841 + 1056510016 = 37971^2 + 32504^2 .

It is a cyclic number.

It is not a de Polignac number, because 2498306857 - 2⁷ = 2498306729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2498306357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36228 + ... + 79429.

It is an arithmetic number, because the mean of its divisors is an integer number (624611029).

Almost surely, 2^2498306857 is an apocalyptic number.

It is an amenable number.

2498306857 is a deficient number, since it is larger than the sum of its proper divisors (137259).

2498306857 is a wasteful number, since it uses less digits than its factorization.

2498306857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137258.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The square root of 2498306857 is about 49983.0657022956. The cubic root of 2498306857 is about 1356.9023459567.

The spelling of 2498306857 in words is "two billion, four hundred ninety-eight million, three hundred six thousand, eight hundred fifty-seven".