51241524421 has 8 divisors (see below), whose sum is σ = 51434768000. Its totient is φ = 51048452448.

The previous prime is 51241524419. The next prime is 51241524569. The reversal of 51241524421 is 12442514215.

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 51241524421 - 2¹ = 51241524419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51241524401) 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, 571945 + ... + 655441.

It is an arithmetic number, because the mean of its divisors is an integer number (6429346000).

Almost surely, 2^51241524421 is an apocalyptic number.

It is an amenable number.

51241524421 is a deficient number, since it is larger than the sum of its proper divisors (193243579).

51241524421 is a wasteful number, since it uses less digits than its factorization.

51241524421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85803.

The product of its digits is 12800, while the sum is 31.

The spelling of 51241524421 in words is "fifty-one billion, two hundred forty-one million, five hundred twenty-four thousand, four hundred twenty-one".