426370551 has 4 divisors (see below), whose sum is σ = 568494072. Its totient is φ = 284247032.

The previous prime is 426370543. The next prime is 426370561. The reversal of 426370551 is 155073624.

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 426370551 - 2³ = 426370543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426370561) 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 3 ways as a sum of consecutive naturals, for example, 71061756 + ... + 71061761.

It is an arithmetic number, because the mean of its divisors is an integer number (142123518).

Almost surely, 2^426370551 is an apocalyptic number.

426370551 is a deficient number, since it is larger than the sum of its proper divisors (142123521).

426370551 is a wasteful number, since it uses less digits than its factorization.

426370551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142123520.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 426370551 is about 20648.7421166520. The cubic root of 426370551 is about 752.6546231047.

The spelling of 426370551 in words is "four hundred twenty-six million, three hundred seventy thousand, five hundred fifty-one".