2485407257 has 2 divisors, whose sum is σ = 2485407258. Its totient is φ = 2485407256.

The previous prime is 2485407247. The next prime is 2485407307. The reversal of 2485407257 is 7527045842.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2481932761 + 3474496 = 49819^2 + 1864^2 .

It is a cyclic number.

It is not a de Polignac number, because 2485407257 - 2²⁴ = 2468630041 is a prime.

It is not a weakly prime, because it can be changed into another prime (2485407227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1242703628 + 1242703629.

It is an arithmetic number, because the mean of its divisors is an integer number (1242703629).

Almost surely, 2^2485407257 is an apocalyptic number.

It is an amenable number.

2485407257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2485407257 is an equidigital number, since it uses as much as digits as its factorization.

2485407257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 627200, while the sum is 44.

The square root of 2485407257 is about 49853.8589980756. The cubic root of 2485407257 is about 1354.5629336127.

The spelling of 2485407257 in words is "two billion, four hundred eighty-five million, four hundred seven thousand, two hundred fifty-seven".