422625261 has 8 divisors (see below), whose sum is σ = 563703840. Its totient is φ = 281648432.

The previous prime is 422625223. The next prime is 422625277. The reversal of 422625261 is 162526224.

It is a happy number.

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 422625261 - 2⁶ = 422625197 is a prime.

It is a super-2 number, since 2×422625261² = 357224222470636242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422625361) 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, 15150 + ... + 32783.

It is an arithmetic number, because the mean of its divisors is an integer number (70462980).

Almost surely, 2^422625261 is an apocalyptic number.

It is an amenable number.

422625261 is a deficient number, since it is larger than the sum of its proper divisors (141078579).

422625261 is a wasteful number, since it uses less digits than its factorization.

422625261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50875.

The product of its digits is 11520, while the sum is 30.

The square root of 422625261 is about 20557.8515657644. The cubic root of 422625261 is about 750.4443358134. Note that the first 3 decimals are identical.

The spelling of 422625261 in words is "four hundred twenty-two million, six hundred twenty-five thousand, two hundred sixty-one".