51505100601 has 4 divisors (see below), whose sum is σ = 68673467472. Its totient is φ = 34336733732.

The previous prime is 51505100597. The next prime is 51505100641. The reversal of 51505100601 is 10600150515.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51505100601 - 2² = 51505100597 is a prime.

It is a super-3 number, since 3×51505100601³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (51505100641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8584183431 + ... + 8584183436.

It is an arithmetic number, because the mean of its divisors is an integer number (17168366868).

Almost surely, 2^51505100601 is an apocalyptic number.

It is an amenable number.

51505100601 is a deficient number, since it is larger than the sum of its proper divisors (17168366871).

51505100601 is a wasteful number, since it uses less digits than its factorization.

51505100601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17168366870.

The product of its (nonzero) digits is 750, while the sum is 24.

The spelling of 51505100601 in words is "fifty-one billion, five hundred five million, one hundred thousand, six hundred one".