425553402123 has 6 divisors (see below), whose sum is σ = 614688247524. Its totient is φ = 283702268076.

The previous prime is 425553402103. The next prime is 425553402161. The reversal of 425553402123 is 321204355524.

425553402123 is a `hidden beast` number, since 4 + 25 + 553 + 40 + 21 + 23 = 666.

It is not a de Polignac number, because 425553402123 - 2¹⁷ = 425553271051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (425553402103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23641855665 + ... + 23641855682.

It is an arithmetic number, because the mean of its divisors is an integer number (102448041254).

Almost surely, 2^425553402123 is an apocalyptic number.

425553402123 is a deficient number, since it is larger than the sum of its proper divisors (189134845401).

425553402123 is a wasteful number, since it uses less digits than its factorization.

425553402123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47283711353 (or 47283711350 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 425553402123 its reverse (321204355524), we get a palindrome (746757757647).

The spelling of 425553402123 in words is "four hundred twenty-five billion, five hundred fifty-three million, four hundred two thousand, one hundred twenty-three".