51060210242 has 4 divisors (see below), whose sum is σ = 76590315366. Its totient is φ = 25530105120.

The previous prime is 51060210241. The next prime is 51060210283. The reversal of 51060210242 is 24201206015.

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., 42016390441 + 9043819801 = 204979^2 + 95099^2 .

It is not an unprimeable number, because it can be changed into a prime (51060210241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12765052559 + ... + 12765052562.

Almost surely, 2^51060210242 is an apocalyptic number.

51060210242 is a deficient number, since it is larger than the sum of its proper divisors (25530105124).

51060210242 is a wasteful number, since it uses less digits than its factorization.

51060210242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25530105123.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 51060210242 its reverse (24201206015), we get a palindrome (75261416257).

The spelling of 51060210242 in words is "fifty-one billion, sixty million, two hundred ten thousand, two hundred forty-two".