20140304425 has 12 divisors (see below), whose sum is σ = 25383388876. Its totient is φ = 15848107200.

The previous prime is 20140304411. The next prime is 20140304441. The reversal of 20140304425 is 52440304102.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 6760292841 + 13380011584 = 82221^2 + 115672^2 .

It is not a de Polignac number, because 20140304425 - 2¹³ = 20140296233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20140304425.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6601854 + ... + 6604903.

Almost surely, 2^20140304425 is an apocalyptic number.

20140304425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20140304425 is a deficient number, since it is larger than the sum of its proper divisors (5243084451).

20140304425 is a wasteful number, since it uses less digits than its factorization.

20140304425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13206828 (or 13206823 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 20140304425 its reverse (52440304102), we get a palindrome (72580608527).

The spelling of 20140304425 in words is "twenty billion, one hundred forty million, three hundred four thousand, four hundred twenty-five".