405535125 has 32 divisors (see below), whose sum is σ = 676166400. Its totient is φ = 215851200.

The previous prime is 405535073. The next prime is 405535157. The reversal of 405535125 is 521535504.

It is a happy number.

It is not a de Polignac number, because 405535125 - 2¹¹ = 405533077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 405535092 and 405535101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 289176 + ... + 290574.

It is an arithmetic number, because the mean of its divisors is an integer number (21130200).

Almost surely, 2^405535125 is an apocalyptic number.

It is an amenable number.

405535125 is a deficient number, since it is larger than the sum of its proper divisors (270631275).

405535125 is a wasteful number, since it uses less digits than its factorization.

405535125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190 (or 2180 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 405535125 is about 20137.9026961598. The cubic root of 405535125 is about 740.1893385733.

The spelling of 405535125 in words is "four hundred five million, five hundred thirty-five thousand, one hundred twenty-five".