401025522 has 8 divisors (see below), whose sum is σ = 802051056. Its totient is φ = 133675172.

The previous prime is 401025511. The next prime is 401025553. The reversal of 401025522 is 225520104.

It is a happy number.

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

401025522 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33418788 + ... + 33418799.

It is an arithmetic number, because the mean of its divisors is an integer number (100256382).

Almost surely, 2^401025522 is an apocalyptic number.

401025522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401025522 is a wasteful number, since it uses less digits than its factorization.

401025522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66837592.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 401025522 is about 20025.6216382913. The cubic root of 401025522 is about 737.4354382629.

Adding to 401025522 its reverse (225520104), we get a palindrome (626545626).

The spelling of 401025522 in words is "four hundred one million, twenty-five thousand, five hundred twenty-two".