425012551 has 4 divisors (see below), whose sum is σ = 426022504. Its totient is φ = 424002600.

The previous prime is 425012543. The next prime is 425012579. The reversal of 425012551 is 155210524.

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

It is a cyclic number.

It is not a de Polignac number, because 425012551 - 2³ = 425012543 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 (425012591) 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, 504345 + ... + 505186.

It is an arithmetic number, because the mean of its divisors is an integer number (106505626).

Almost surely, 2^425012551 is an apocalyptic number.

425012551 is a deficient number, since it is larger than the sum of its proper divisors (1009953).

425012551 is a wasteful number, since it uses less digits than its factorization.

425012551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009952.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 425012551 is about 20615.8325323039. The cubic root of 425012551 is about 751.8546991555.

The spelling of 425012551 in words is "four hundred twenty-five million, twelve thousand, five hundred fifty-one".