51034563450 has 144 divisors (see below), whose sum is σ = 151262177976. Its totient is φ = 12255897600.

The previous prime is 51034563427. The next prime is 51034563473. The reversal of 51034563450 is 5436543015.

51034563450 is a `hidden beast` number, since 5 + 10 + 3 + 4 + 5 + 634 + 5 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (51034563427) and next prime (51034563473).

It can be written as a sum of positive squares in 12 ways, for example, as 876929769 + 50157633681 = 29613^2 + 223959^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 133462 + ... + 346238.

Almost surely, 2^51034563450 is an apocalyptic number.

51034563450 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 51034563450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75631088988).

51034563450 is an abundant number, since it is smaller than the sum of its proper divisors (100227614526).

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

51034563450 is a wasteful number, since it uses less digits than its factorization.

51034563450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212849 (or 212841 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 51034563450 in words is "fifty-one billion, thirty-four million, five hundred sixty-three thousand, four hundred fifty".