61511000352050 has 12 divisors (see below), whose sum is σ = 114410460654906. Its totient is φ = 24604400140800.

The previous prime is 61511000352049. The next prime is 61511000352119. The reversal of 61511000352050 is 5025300011516.

It can be written as a sum of positive squares in 3 ways, for example, as 55593024581329 + 5917975770721 = 7456073^2 + 2432689^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 615110003471 + ... + 615110003570.

Almost surely, 2^{61511000352050} is an apocalyptic number.

61511000352050 is a deficient number, since it is larger than the sum of its proper divisors (52899460302856).

61511000352050 is a wasteful number, since it uses less digits than its factorization.

61511000352050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230220007053 (or 1230220007048 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

Adding to 61511000352050 its reverse (5025300011516), we get a palindrome (66536300363566).

The spelling of 61511000352050 in words is "sixty-one trillion, five hundred eleven billion, three hundred fifty-two thousand, fifty".