1425912257 has 8 divisors (see below), whose sum is σ = 1777760832. Its totient is φ = 1111100400.

The previous prime is 1425912251. The next prime is 1425912283. The reversal of 1425912257 is 7522195241.

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 1425912257 - 2⁶ = 1425912193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1425912257.

It is not an unprimeable number, because it can be changed into a prime (1425912251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9259094 + ... + 9259247.

It is an arithmetic number, because the mean of its divisors is an integer number (222220104).

Almost surely, 2^1425912257 is an apocalyptic number.

It is an amenable number.

1425912257 is a deficient number, since it is larger than the sum of its proper divisors (351848575).

1425912257 is a wasteful number, since it uses less digits than its factorization.

1425912257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18518359.

The product of its digits is 50400, while the sum is 38.

The square root of 1425912257 is about 37761.2533822700. The cubic root of 1425912257 is about 1125.5486395896.

The spelling of 1425912257 in words is "one billion, four hundred twenty-five million, nine hundred twelve thousand, two hundred fifty-seven".