425054621 has 8 divisors (see below), whose sum is σ = 450398520. Its totient is φ = 399748608.

The previous prime is 425054563. The next prime is 425054657. The reversal of 425054621 is 126450524.

It can be written as a sum of positive squares in 4 ways, for example, as 3204100 + 421850521 = 1790^2 + 20539^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-425054621 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 (425014621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15545 + ... + 33041.

It is an arithmetic number, because the mean of its divisors is an integer number (56299815).

Almost surely, 2^425054621 is an apocalyptic number.

It is an amenable number.

425054621 is a deficient number, since it is larger than the sum of its proper divisors (25343899).

425054621 is a wasteful number, since it uses less digits than its factorization.

425054621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18943.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 425054621 is about 20616.8528393642. The cubic root of 425054621 is about 751.8795058610.

The spelling of 425054621 in words is "four hundred twenty-five million, fifty-four thousand, six hundred twenty-one".