1425685810 has 16 divisors (see below), whose sum is σ = 2573510616. Its totient is φ = 568657408.

The previous prime is 1425685799. The next prime is 1425685819. The reversal of 1425685810 is 185865241.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 984139641 + 441546169 = 31371^2 + 21013^2 .

It is a super-2 number, since 2×1425685810² = 4065160057670712200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1425685819) 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, 198409 + ... + 205468.

Almost surely, 2^1425685810 is an apocalyptic number.

1425685810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1425685810 is a deficient number, since it is larger than the sum of its proper divisors (1147824806).

1425685810 is a wasteful number, since it uses less digits than its factorization.

1425685810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404237.

The product of its (nonzero) digits is 76800, while the sum is 40.

The square root of 1425685810 is about 37758.2548590371. The cubic root of 1425685810 is about 1125.4890542013.

The spelling of 1425685810 in words is "one billion, four hundred twenty-five million, six hundred eighty-five thousand, eight hundred ten".