51523225049 has 8 divisors (see below), whose sum is σ = 52107057000. Its totient is φ = 50939502592.

The previous prime is 51523225043. The next prime is 51523225069. The reversal of 51523225049 is 94052232515.

It can be written as a sum of positive squares in 4 ways, for example, as 15814320025 + 35708905024 = 125755^2 + 188968^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51523225049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51523225043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1258697 + ... + 1298985.

It is an arithmetic number, because the mean of its divisors is an integer number (6513382125).

Almost surely, 2^51523225049 is an apocalyptic number.

It is an amenable number.

51523225049 is a deficient number, since it is larger than the sum of its proper divisors (583831951).

51523225049 is a wasteful number, since it uses less digits than its factorization.

51523225049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54747.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 51523225049 in words is "fifty-one billion, five hundred twenty-three million, two hundred twenty-five thousand, forty-nine".