425443653 has 6 divisors (see below), whose sum is σ = 614529734. Its totient is φ = 283629096.

The previous prime is 425443643. The next prime is 425443657. The reversal of 425443653 is 356344524.

It can be written as a sum of positive squares in only one way, i.e., 243921924 + 181521729 = 15618^2 + 13473^2 .

It is not a de Polignac number, because 425443653 - 2⁶ = 425443589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425443657) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23635750 + ... + 23635767.

Almost surely, 2^425443653 is an apocalyptic number.

It is an amenable number.

425443653 is a deficient number, since it is larger than the sum of its proper divisors (189086081).

425443653 is a wasteful number, since it uses less digits than its factorization.

425443653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47271523 (or 47271520 counting only the distinct ones).

The product of its digits is 172800, while the sum is 36.

The square root of 425443653 is about 20626.2854872127. The cubic root of 425443653 is about 752.1088222674.

The spelling of 425443653 in words is "four hundred twenty-five million, four hundred forty-three thousand, six hundred fifty-three".