400522255 has 8 divisors (see below), whose sum is σ = 549287712. Its totient is φ = 274643808.

The previous prime is 400522249. The next prime is 400522303. The reversal of 400522255 is 552225004.

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 400522255 - 2¹¹ = 400520207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5721712 + ... + 5721781.

It is an arithmetic number, because the mean of its divisors is an integer number (68660964).

Almost surely, 2^400522255 is an apocalyptic number.

400522255 is a deficient number, since it is larger than the sum of its proper divisors (148765457).

400522255 is a wasteful number, since it uses less digits than its factorization.

400522255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11443505.

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 400522255 is about 20013.0521160567. The cubic root of 400522255 is about 737.1268275825.

Adding to 400522255 its reverse (552225004), we get a palindrome (952747259).

The spelling of 400522255 in words is "four hundred million, five hundred twenty-two thousand, two hundred fifty-five".