251253422 has 8 divisors (see below), whose sum is σ = 430720176. Its totient is φ = 107680032.

The previous prime is 251253413. The next prime is 251253427. The reversal of 251253422 is 224352152.

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

It is a junction number, because it is equal to n+sod(n) for n = 251253391 and 251253400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251253427) 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, 8973323 + ... + 8973350.

It is an arithmetic number, because the mean of its divisors is an integer number (53840022).

Almost surely, 2^251253422 is an apocalyptic number.

251253422 is a deficient number, since it is larger than the sum of its proper divisors (179466754).

251253422 is a wasteful number, since it uses less digits than its factorization.

251253422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17946682.

The product of its digits is 4800, while the sum is 26.

The square root of 251253422 is about 15850.9754273988. The cubic root of 251253422 is about 631.0115788556.

The spelling of 251253422 in words is "two hundred fifty-one million, two hundred fifty-three thousand, four hundred twenty-two".