51560436450 has 96 divisors (see below), whose sum is σ = 135579804480. Its totient is φ = 12922675200.

The previous prime is 51560436437. The next prime is 51560436463. The reversal of 51560436450 is 5463406515.

It is an interprime number because it is at equal distance from previous prime (51560436437) and next prime (51560436463).

It is a junction number, because it is equal to n+sod(n) for n = 51560436399 and 51560436408.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1870770 + ... + 1898130.

It is an arithmetic number, because the mean of its divisors is an integer number (1412289630).

Almost surely, 2^51560436450 is an apocalyptic number.

51560436450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 51560436450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67789902240).

51560436450 is an abundant number, since it is smaller than the sum of its proper divisors (84019368030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51560436450 is a wasteful number, since it uses less digits than its factorization.

51560436450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28132 (or 28127 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 51560436450 in words is "fifty-one billion, five hundred sixty million, four hundred thirty-six thousand, four hundred fifty".