51514544002 has 4 divisors (see below), whose sum is σ = 77271816006. Its totient is φ = 25757272000.

The previous prime is 51514543999. The next prime is 51514544027. The reversal of 51514544002 is 20044541515.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 39863716281 + 11650827721 = 199659^2 + 107939^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12878635999 + ... + 12878636002.

Almost surely, 2^51514544002 is an apocalyptic number.

51514544002 is a deficient number, since it is larger than the sum of its proper divisors (25757272004).

51514544002 is a wasteful number, since it uses less digits than its factorization.

51514544002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25757272003.

The product of its (nonzero) digits is 16000, while the sum is 31.

The spelling of 51514544002 in words is "fifty-one billion, five hundred fourteen million, five hundred forty-four thousand, two".