51343253501 has 8 divisors (see below), whose sum is σ = 51694012800. Its totient is φ = 50993422128.

The previous prime is 51343253497. The next prime is 51343253527. The reversal of 51343253501 is 10535234315.

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 51343253501 - 2² = 51343253497 is a prime.

It is a super-2 number, since 2×51343253501² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51343253561) 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, 120761 + ... + 342446.

It is an arithmetic number, because the mean of its divisors is an integer number (6461751600).

Almost surely, 2^51343253501 is an apocalyptic number.

It is an amenable number.

51343253501 is a deficient number, since it is larger than the sum of its proper divisors (350759299).

51343253501 is a wasteful number, since it uses less digits than its factorization.

51343253501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463963.

The product of its (nonzero) digits is 27000, while the sum is 32.

Adding to 51343253501 its reverse (10535234315), we get a palindrome (61878487816).

The spelling of 51343253501 in words is "fifty-one billion, three hundred forty-three million, two hundred fifty-three thousand, five hundred one".