401225365025 has 24 divisors (see below), whose sum is σ = 523883865120. Its totient is φ = 303982554240.

The previous prime is 401225365019. The next prime is 401225365081. The reversal of 401225365025 is 520563522104.

It is a de Polignac number, because none of the positive numbers 2^k-401225365025 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, 1259654 + ... + 1545696.

It is an arithmetic number, because the mean of its divisors is an integer number (21828494380).

Almost surely, 2^401225365025 is an apocalyptic number.

It is an amenable number.

401225365025 is a deficient number, since it is larger than the sum of its proper divisors (122658500095).

401225365025 is a wasteful number, since it uses less digits than its factorization.

401225365025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289025 (or 289020 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 401225365025 its reverse (520563522104), we get a palindrome (921788887129).

The spelling of 401225365025 in words is "four hundred one billion, two hundred twenty-five million, three hundred sixty-five thousand, twenty-five".