1425223750 has 80 divisors (see below), whose sum is σ = 2823971040. Its totient is φ = 538208000.

The previous prime is 1425223721. The next prime is 1425223771. The reversal of 1425223750 is 573225241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2558472 + ... + 2559028.

It is an arithmetic number, because the mean of its divisors is an integer number (35299638).

Almost surely, 2^1425223750 is an apocalyptic number.

1425223750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1425223750 is a deficient number, since it is larger than the sum of its proper divisors (1398747290).

1425223750 is an equidigital number, since it uses as much as digits as its factorization.

1425223750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 1425223750 is about 37752.1357011759. The cubic root of 1425223750 is about 1125.3674519848.

Adding to 1425223750 its reverse (573225241), we get a palindrome (1998448991).

The spelling of 1425223750 in words is "one billion, four hundred twenty-five million, two hundred twenty-three thousand, seven hundred fifty".