426005251 has 8 divisors (see below), whose sum is σ = 512487680. Its totient is φ = 345928968.

The previous prime is 426005243. The next prime is 426005263. The reversal of 426005251 is 152500624.

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

It is not a de Polignac number, because 426005251 - 2³ = 426005243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426005201) 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, 1601391 + ... + 1601656.

It is an arithmetic number, because the mean of its divisors is an integer number (64060960).

Almost surely, 2^426005251 is an apocalyptic number.

426005251 is a deficient number, since it is larger than the sum of its proper divisors (86482429).

426005251 is a wasteful number, since it uses less digits than its factorization.

426005251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3203073.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 426005251 is about 20639.8946460489. The cubic root of 426005251 is about 752.4396119353.

Adding to 426005251 its reverse (152500624), we get a palindrome (578505875).

The spelling of 426005251 in words is "four hundred twenty-six million, five thousand, two hundred fifty-one".