1425868057 has 4 divisors (see below), whose sum is σ = 1430423860. Its totient is φ = 1421312256.

The previous prime is 1425868051. The next prime is 1425868069. The reversal of 1425868057 is 7508685241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7508685241 = 43 ⋅174620587.

It can be written as a sum of positive squares in 2 ways, for example, as 499030921 + 926837136 = 22339^2 + 30444^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1425868057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1425867998 and 1425868016.

It is not an unprimeable number, because it can be changed into a prime (1425868051) 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, 2277432 + ... + 2278057.

It is an arithmetic number, because the mean of its divisors is an integer number (357605965).

Almost surely, 2^1425868057 is an apocalyptic number.

It is an amenable number.

1425868057 is a deficient number, since it is larger than the sum of its proper divisors (4555803).

1425868057 is an equidigital number, since it uses as much as digits as its factorization.

1425868057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4555802.

The product of its (nonzero) digits is 537600, while the sum is 46.

The square root of 1425868057 is about 37760.6681217375. The cubic root of 1425868057 is about 1125.5370096631.

The spelling of 1425868057 in words is "one billion, four hundred twenty-five million, eight hundred sixty-eight thousand, fifty-seven".