1425755805 has 8 divisors (see below), whose sum is σ = 2281209312. Its totient is φ = 760403088.

The previous prime is 1425755803. The next prime is 1425755831. The reversal of 1425755805 is 5085575241.

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

It is not a de Polignac number, because 1425755805 - 2¹ = 1425755803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425755803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47525179 + ... + 47525208.

It is an arithmetic number, because the mean of its divisors is an integer number (285151164).

Almost surely, 2^1425755805 is an apocalyptic number.

1425755805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1425755805 is a deficient number, since it is larger than the sum of its proper divisors (855453507).

1425755805 is an equidigital number, since it uses as much as digits as its factorization.

1425755805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95050395.

The product of its (nonzero) digits is 280000, while the sum is 42.

The square root of 1425755805 is about 37759.1817310704. The cubic root of 1425755805 is about 1125.5074727796.

The spelling of 1425755805 in words is "one billion, four hundred twenty-five million, seven hundred fifty-five thousand, eight hundred five".