425543551 has 12 divisors (see below), whose sum is σ = 460089504. Its totient is φ = 393300000.

The previous prime is 425543527. The next prime is 425543557. The reversal of 425543551 is 155345524.

It is not a de Polignac number, because 425543551 - 2¹¹ = 425541503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425543557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 426 + ... + 29176.

It is an arithmetic number, because the mean of its divisors is an integer number (38340792).

Almost surely, 2^425543551 is an apocalyptic number.

425543551 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

425543551 is a deficient number, since it is larger than the sum of its proper divisors (34545953).

425543551 is a wasteful number, since it uses less digits than its factorization.

425543551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28830 (or 28811 counting only the distinct ones).

The product of its digits is 60000, while the sum is 34.

The square root of 425543551 is about 20628.7069638405. The cubic root of 425543551 is about 752.1676849680.

The spelling of 425543551 in words is "four hundred twenty-five million, five hundred forty-three thousand, five hundred fifty-one".