425493451 has 4 divisors (see below), whose sum is σ = 436993312. Its totient is φ = 413993592.

The previous prime is 425493433. The next prime is 425493461. The reversal of 425493451 is 154394524.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 425493451 - 2¹⁹ = 424969163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 11499823 = 425493451 / (4 + 2 + 5 + 4 + 9 + 3 + 4 + 5 + 1).

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 425493451.

It is not an unprimeable number, because it can be changed into a prime (425493401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5749875 + ... + 5749948.

It is an arithmetic number, because the mean of its divisors is an integer number (109248328).

Almost surely, 2^425493451 is an apocalyptic number.

425493451 is a deficient number, since it is larger than the sum of its proper divisors (11499861).

425493451 is a wasteful number, since it uses less digits than its factorization.

425493451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11499860.

The product of its digits is 86400, while the sum is 37.

The square root of 425493451 is about 20627.4926008955. The cubic root of 425493451 is about 752.1381657959.

The spelling of 425493451 in words is "four hundred twenty-five million, four hundred ninety-three thousand, four hundred fifty-one".