51242213322453 has 8 divisors (see below), whose sum is σ = 68324438081088. Its totient is φ = 34160732056064.

The previous prime is 51242213322451. The next prime is 51242213322497. The reversal of 51242213322453 is 35422331224215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51242213322453 - 2¹ = 51242213322451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51242213322451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185712225 + ... + 185987942.

It is an arithmetic number, because the mean of its divisors is an integer number (8540554760136).

Almost surely, 2^{51242213322453} is an apocalyptic number.

It is an amenable number.

51242213322453 is a deficient number, since it is larger than the sum of its proper divisors (17082224758635).

51242213322453 is a wasteful number, since it uses less digits than its factorization.

51242213322453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371746123.

The product of its digits is 345600, while the sum is 39.

Adding to 51242213322453 its reverse (35422331224215), we get a palindrome (86664544546668).

The spelling of 51242213322453 in words is "fifty-one trillion, two hundred forty-two billion, two hundred thirteen million, three hundred twenty-two thousand, four hundred fifty-three".