422513251 has 8 divisors (see below), whose sum is σ = 430707200. Its totient is φ = 414390600.

The previous prime is 422513239. The next prime is 422513281. The reversal of 422513251 is 152315224.

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

It is a cyclic number.

It is not a de Polignac number, because 422513251 - 2²¹ = 420416099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422513281) 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, 5781 + ... + 29638.

It is an arithmetic number, because the mean of its divisors is an integer number (53838400).

Almost surely, 2^422513251 is an apocalyptic number.

422513251 is a deficient number, since it is larger than the sum of its proper divisors (8193949).

422513251 is a wasteful number, since it uses less digits than its factorization.

422513251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35649.

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

The square root of 422513251 is about 20555.1271219616. The cubic root of 422513251 is about 750.3780322383.

Adding to 422513251 its reverse (152315224), we get a palindrome (574828475).

The spelling of 422513251 in words is "four hundred twenty-two million, five hundred thirteen thousand, two hundred fifty-one".