51345150002 has 4 divisors (see below), whose sum is σ = 77017725006. Its totient is φ = 25672575000.

The previous prime is 51345149917. The next prime is 51345150007. The reversal of 51345150002 is 20005154315.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20005154315 = 5 ⋅4001030863.

It can be written as a sum of positive squares in only one way, i.e., 46780931521 + 4564218481 = 216289^2 + 67559^2 .

It is not an unprimeable number, because it can be changed into a prime (51345150007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12836287499 + ... + 12836287502.

Almost surely, 2^51345150002 is an apocalyptic number.

51345150002 is a deficient number, since it is larger than the sum of its proper divisors (25672575004).

51345150002 is a wasteful number, since it uses less digits than its factorization.

51345150002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25672575003.

The product of its (nonzero) digits is 3000, while the sum is 26.

The spelling of 51345150002 in words is "fifty-one billion, three hundred forty-five million, one hundred fifty thousand, two".