425404155 has 16 divisors (see below), whose sum is σ = 742523904. Its totient is φ = 206256480.

The previous prime is 425404139. The next prime is 425404157. The reversal of 425404155 is 551404524.

It is not a de Polignac number, because 425404155 - 2⁴ = 425404139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (425404157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1288939 + ... + 1289268.

It is an arithmetic number, because the mean of its divisors is an integer number (46407744).

Almost surely, 2^425404155 is an apocalyptic number.

425404155 is a deficient number, since it is larger than the sum of its proper divisors (317119749).

425404155 is a wasteful number, since it uses less digits than its factorization.

425404155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2578226.

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 425404155 is about 20625.3279973919. The cubic root of 425404155 is about 752.0855463973.

Adding to 425404155 its reverse (551404524), we get a palindrome (976808679).

The spelling of 425404155 in words is "four hundred twenty-five million, four hundred four thousand, one hundred fifty-five".