400425213255 has 16 divisors (see below), whose sum is σ = 640695199200. Its totient is φ = 213555161088.

The previous prime is 400425213241. The next prime is 400425213277. The reversal of 400425213255 is 552312524004.

It is a happy number.

It is not a de Polignac number, because 400425213255 - 2⁷ = 400425213127 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413271 + ... + 985719.

It is an arithmetic number, because the mean of its divisors is an integer number (40043449950).

Almost surely, 2^400425213255 is an apocalyptic number.

400425213255 is a deficient number, since it is larger than the sum of its proper divisors (240269985945).

400425213255 is a wasteful number, since it uses less digits than its factorization.

400425213255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619090.

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 400425213255 its reverse (552312524004), we get a palindrome (952737737259).

The spelling of 400425213255 in words is "four hundred billion, four hundred twenty-five million, two hundred thirteen thousand, two hundred fifty-five".