51050000551 has 8 divisors (see below), whose sum is σ = 56151166608. Its totient is φ = 46409090200.

The previous prime is 51050000473. The next prime is 51050000597. The reversal of 51050000551 is 15500005015.

51050000551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51050000551 - 2³¹ = 48902516903 is a prime.

It is a super-2 number, since 2×51050000551² (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 (51050000051) 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, 19175980 + ... + 19178641.

It is an arithmetic number, because the mean of its divisors is an integer number (7018895826).

Almost surely, 2^51050000551 is an apocalyptic number.

51050000551 is a deficient number, since it is larger than the sum of its proper divisors (5101166057).

51050000551 is an equidigital number, since it uses as much as digits as its factorization.

51050000551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38354654 (or 38354632 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 22.

Adding to 51050000551 its reverse (15500005015), we get a palindrome (66550005566).

The spelling of 51050000551 in words is "fifty-one billion, fifty million, five hundred fifty-one", and thus it is an aban number.