1425634650 has 72 divisors (see below), whose sum is σ = 4178420064. Its totient is φ = 345607200.

The previous prime is 1425634649. The next prime is 1425634667. The reversal of 1425634650 is 564365241.

1425634650 is a `hidden beast` number, since 1 + 4 + 2 + 563 + 46 + 50 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 139054 + ... + 148953.

It is an arithmetic number, because the mean of its divisors is an integer number (58033612).

Almost surely, 2^1425634650 is an apocalyptic number.

1425634650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1425634650 is an abundant number, since it is smaller than the sum of its proper divisors (2752785414).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1425634650 is a wasteful number, since it uses less digits than its factorization.

1425634650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288036 (or 288028 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 1425634650 is about 37757.5773852084. The cubic root of 1425634650 is about 1125.4755915089.

Adding to 1425634650 its reverse (564365241), we get a palindrome (1989999891).

The spelling of 1425634650 in words is "one billion, four hundred twenty-five million, six hundred thirty-four thousand, six hundred fifty".