51448569059 has 4 divisors (see below), whose sum is σ = 51764204616. Its totient is φ = 51132933504.

The previous prime is 51448568993. The next prime is 51448569103. The reversal of 51448569059 is 95096584415.

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

It is a cyclic number.

It is not a de Polignac number, because 51448569059 - 2⁸ = 51448568803 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51448568995 and 51448569013.

It is not an unprimeable number, because it can be changed into a prime (51448569559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157817534 + ... + 157817859.

It is an arithmetic number, because the mean of its divisors is an integer number (12941051154).

Almost surely, 2^51448569059 is an apocalyptic number.

51448569059 is a deficient number, since it is larger than the sum of its proper divisors (315635557).

51448569059 is a wasteful number, since it uses less digits than its factorization.

51448569059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315635556.

The product of its (nonzero) digits is 7776000, while the sum is 56.

The spelling of 51448569059 in words is "fifty-one billion, four hundred forty-eight million, five hundred sixty-nine thousand, fifty-nine".