115515430525450 has 24 divisors (see below), whose sum is σ = 220665692693772. Its totient is φ = 44957356744320.

The previous prime is 115515430525409. The next prime is 115515430525463. The reversal of 115515430525450 is 54525034515511.

It can be written as a sum of positive squares in 6 ways, for example, as 24682007673801 + 90833422851649 = 4968099^2 + 9530657^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 115515430525450.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31220384779 + ... + 31220388478.

Almost surely, 2^{115515430525450} is an apocalyptic number.

115515430525450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115515430525450 is a deficient number, since it is larger than the sum of its proper divisors (105150262168322).

115515430525450 is a wasteful number, since it uses less digits than its factorization.

115515430525450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62440773306 (or 62440773301 counting only the distinct ones).

The product of its (nonzero) digits is 1500000, while the sum is 46.

The spelling of 115515430525450 in words is "one hundred fifteen trillion, five hundred fifteen billion, four hundred thirty million, five hundred twenty-five thousand, four hundred fifty".