51225111441 has 12 divisors (see below), whose sum is σ = 84562088832. Its totient is φ = 29271492216.

The previous prime is 51225111409. The next prime is 51225111473. The reversal of 51225111441 is 14411152215.

51225111441 is a `hidden beast` number, since 5 + 1 + 2 + 2 + 511 + 144 + 1 = 666.

51225111441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51225111409) and next prime (51225111473).

It is not a de Polignac number, because 51225111441 - 2⁵ = 51225111409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51225111541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 406548441 + ... + 406548566.

It is an arithmetic number, because the mean of its divisors is an integer number (7046840736).

Almost surely, 2^51225111441 is an apocalyptic number.

It is an amenable number.

51225111441 is a deficient number, since it is larger than the sum of its proper divisors (33336977391).

51225111441 is a wasteful number, since it uses less digits than its factorization.

51225111441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813097020 (or 813097017 counting only the distinct ones).

The product of its digits is 1600, while the sum is 27.

Adding to 51225111441 its reverse (14411152215), we get a palindrome (65636263656).

The spelling of 51225111441 in words is "fifty-one billion, two hundred twenty-five million, one hundred eleven thousand, four hundred forty-one".