405723025 has 12 divisors (see below), whose sum is σ = 503742064. Its totient is φ = 324162000.

The previous prime is 405723023. The next prime is 405723029. The reversal of 405723025 is 520327504.

It is not a de Polignac number, because 405723025 - 2¹ = 405723023 is a prime.

It is a super-2 number, since 2×405723025² = 329222346030301250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 405722984 and 405723002.

It is not an unprimeable number, because it can be changed into a prime (405723023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10270 + ... + 30280.

Almost surely, 2^405723025 is an apocalyptic number.

It is an amenable number.

405723025 is a deficient number, since it is larger than the sum of its proper divisors (98019039).

405723025 is a wasteful number, since it uses less digits than its factorization.

405723025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20832 (or 20827 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 405723025 is about 20142.5674877857. The cubic root of 405723025 is about 740.3036403054.

The spelling of 405723025 in words is "four hundred five million, seven hundred twenty-three thousand, twenty-five".