1425255518 has 16 divisors (see below), whose sum is σ = 2213779680. Its totient is φ = 687377376.

The previous prime is 1425255487. The next prime is 1425255527. The reversal of 1425255518 is 8155525241.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50096 + ... + 73212.

It is an arithmetic number, because the mean of its divisors is an integer number (138361230).

Almost surely, 2^1425255518 is an apocalyptic number.

1425255518 is a deficient number, since it is larger than the sum of its proper divisors (788524162).

1425255518 is a wasteful number, since it uses less digits than its factorization.

1425255518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24211.

The product of its digits is 80000, while the sum is 38.

The square root of 1425255518 is about 37752.5564432397. The cubic root of 1425255518 is about 1125.3758133403.

The spelling of 1425255518 in words is "one billion, four hundred twenty-five million, two hundred fifty-five thousand, five hundred eighteen".