51242962501 has 8 divisors (see below), whose sum is σ = 51426061344. Its totient is φ = 51059920080.

The previous prime is 51242962471. The next prime is 51242962523. The reversal of 51242962501 is 10526924215.

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 51242962501 - 2⁵ = 51242962469 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 (51242962541) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 2771650 + ... + 2790076.

It is an arithmetic number, because the mean of its divisors is an integer number (6428257668).

Almost surely, 2^51242962501 is an apocalyptic number.

It is an amenable number.

51242962501 is a deficient number, since it is larger than the sum of its proper divisors (183098843).

51242962501 is a wasteful number, since it uses less digits than its factorization.

51242962501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28211.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 51242962501 in words is "fifty-one billion, two hundred forty-two million, nine hundred sixty-two thousand, five hundred one".