51550450501 has 24 divisors (see below), whose sum is σ = 58559222232. Its totient is φ = 45315916800.

The previous prime is 51550450499. The next prime is 51550450507. The reversal of 51550450501 is 10505405515.

It can be written as a sum of positive squares in 4 ways, for example, as 2202049476 + 49348401025 = 46926^2 + 222145^2 .

It is not a de Polignac number, because 51550450501 - 2¹ = 51550450499 is a prime.

It is a super-3 number, since 3×51550450501³ (a number of 33 digits) contains 333 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 (51550450507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 514615 + ... + 606571.

It is an arithmetic number, because the mean of its divisors is an integer number (2439967593).

Almost surely, 2^51550450501 is an apocalyptic number.

It is an amenable number.

51550450501 is a deficient number, since it is larger than the sum of its proper divisors (7008771731).

51550450501 is a wasteful number, since it uses less digits than its factorization.

51550450501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92133 (or 92122 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 31.

The spelling of 51550450501 in words is "fifty-one billion, five hundred fifty million, four hundred fifty thousand, five hundred one".