425443553 has 4 divisors (see below), whose sum is σ = 425861268. Its totient is φ = 425025840.

The previous prime is 425443549. The next prime is 425443559. The reversal of 425443553 is 355344524.

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

It can be written as a sum of positive squares in 2 ways, for example, as 240157009 + 185286544 = 15497^2 + 13612^2 .

It is a cyclic number.

It is not a de Polignac number, because 425443553 - 2² = 425443549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425443559) 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, 207326 + ... + 209367.

It is an arithmetic number, because the mean of its divisors is an integer number (106465317).

Almost surely, 2^425443553 is an apocalyptic number.

It is an amenable number.

425443553 is a deficient number, since it is larger than the sum of its proper divisors (417715).

425443553 is a wasteful number, since it uses less digits than its factorization.

425443553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417714.

The product of its digits is 144000, while the sum is 35.

The square root of 425443553 is about 20626.2830631212. The cubic root of 425443553 is about 752.1087633400.

The spelling of 425443553 in words is "four hundred twenty-five million, four hundred forty-three thousand, five hundred fifty-three".