454140025 has 6 divisors (see below), whose sum is σ = 563133662. Its totient is φ = 363312000.

The previous prime is 454140019. The next prime is 454140053. The reversal of 454140025 is 520041454.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2832489 + 451307536 = 1683^2 + 21244^2 .

It is not a de Polignac number, because 454140025 - 2³ = 454140017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 18165601 = 454140025 / (4 + 5 + 4 + 1 + 4 + 0 + 0 + 2 + 5).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9082776 + ... + 9082825.

Almost surely, 2^454140025 is an apocalyptic number.

It is an amenable number.

454140025 is a deficient number, since it is larger than the sum of its proper divisors (108993637).

454140025 is a wasteful number, since it uses less digits than its factorization.

454140025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18165611 (or 18165606 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 454140025 is about 21310.5613487773. The cubic root of 454140025 is about 768.6522919862.

Adding to 454140025 its reverse (520041454), we get a palindrome (974181479).

The spelling of 454140025 in words is "four hundred fifty-four million, one hundred forty thousand, twenty-five".