400705552225 has 24 divisors (see below), whose sum is σ = 542157353280. Its totient is φ = 291361992000.

The previous prime is 400705552199. The next prime is 400705552231. The reversal of 400705552225 is 522255507004.

It is not a de Polignac number, because 400705552225 - 2⁹ = 400705551713 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1204615 + ... + 1500835.

It is an arithmetic number, because the mean of its divisors is an integer number (22589889720).

Almost surely, 2^400705552225 is an apocalyptic number.

It is an amenable number.

400705552225 is a deficient number, since it is larger than the sum of its proper divisors (141451801055).

400705552225 is a wasteful number, since it uses less digits than its factorization.

400705552225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301161 (or 301156 counting only the distinct ones).

The product of its (nonzero) digits is 140000, while the sum is 37.

The spelling of 400705552225 in words is "four hundred billion, seven hundred five million, five hundred fifty-two thousand, two hundred twenty-five".