401222525 has 48 divisors (see below), whose sum is σ = 605050560. Its totient is φ = 260121600.

The previous prime is 401222467. The next prime is 401222531. The reversal of 401222525 is 525222104.

It is not a de Polignac number, because 401222525 - 2⁶ = 401222461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 401222525.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 86567 + ... + 91083.

It is an arithmetic number, because the mean of its divisors is an integer number (12605220).

Almost surely, 2^401222525 is an apocalyptic number.

It is an amenable number.

401222525 is a deficient number, since it is larger than the sum of its proper divisors (203828035).

401222525 is a wasteful number, since it uses less digits than its factorization.

401222525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4574 (or 4569 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 401222525 is about 20030.5398080032. The cubic root of 401222525 is about 737.5561730650.

Adding to 401222525 its reverse (525222104), we get a palindrome (926444629).

The spelling of 401222525 in words is "four hundred one million, two hundred twenty-two thousand, five hundred twenty-five".