401505325 has 24 divisors (see below), whose sum is σ = 545277600. Its totient is φ = 291456960.

The previous prime is 401505323. The next prime is 401505331. The reversal of 401505325 is 523505104.

It is not a de Polignac number, because 401505325 - 2¹ = 401505323 is a prime.

It is a super-2 number, since 2×401505325² = 322413052006711250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 401505325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401505323) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 8706 + ... + 29644.

It is an arithmetic number, because the mean of its divisors is an integer number (22719900).

Almost surely, 2^401505325 is an apocalyptic number.

It is an amenable number.

401505325 is a deficient number, since it is larger than the sum of its proper divisors (143772275).

401505325 is a wasteful number, since it uses less digits than its factorization.

401505325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21021 (or 21016 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 401505325 is about 20037.5977851638. The cubic root of 401505325 is about 737.7294201504.

The spelling of 401505325 in words is "four hundred one million, five hundred five thousand, three hundred twenty-five".