1425800857 has 8 divisors (see below), whose sum is σ = 1535905280. Its totient is φ = 1315757520.

The previous prime is 1425800851. The next prime is 1425800867. The reversal of 1425800857 is 7580085241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1425800857 - 2⁷ = 1425800729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1425800851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40882 + ... + 67252.

It is an arithmetic number, because the mean of its divisors is an integer number (191988160).

Almost surely, 2^1425800857 is an apocalyptic number.

It is an amenable number.

1425800857 is a deficient number, since it is larger than the sum of its proper divisors (110104423).

1425800857 is a wasteful number, since it uses less digits than its factorization.

1425800857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30543.

The product of its (nonzero) digits is 89600, while the sum is 40.

The square root of 1425800857 is about 37759.7782964890. The cubic root of 1425800857 is about 1125.5193275046.

The spelling of 1425800857 in words is "one billion, four hundred twenty-five million, eight hundred thousand, eight hundred fifty-seven".