51541444022 has 4 divisors (see below), whose sum is σ = 77312166036. Its totient is φ = 25770722010.

The previous prime is 51541444013. The next prime is 51541444057. The reversal of 51541444022 is 22044414515.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 51541444022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12885361004 + ... + 12885361007.

It is an arithmetic number, because the mean of its divisors is an integer number (19328041509).

Almost surely, 2^51541444022 is an apocalyptic number.

51541444022 is a deficient number, since it is larger than the sum of its proper divisors (25770722014).

51541444022 is a wasteful number, since it uses less digits than its factorization.

51541444022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25770722013.

The product of its (nonzero) digits is 25600, while the sum is 32.

Adding to 51541444022 its reverse (22044414515), we get a palindrome (73585858537).

The spelling of 51541444022 in words is "fifty-one billion, five hundred forty-one million, four hundred forty-four thousand, twenty-two".