51121054 has 8 divisors (see below), whose sum is σ = 78313248. Its totient is φ = 25016640.

The previous prime is 51121043. The next prime is 51121061. The reversal of 51121054 is 45012115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×51121054² = 5226724324141832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271827 + ... + 272014.

It is an arithmetic number, because the mean of its divisors is an integer number (9789156).

Almost surely, 2^51121054 is an apocalyptic number.

51121054 is a deficient number, since it is larger than the sum of its proper divisors (27192194).

51121054 is a wasteful number, since it uses less digits than its factorization.

51121054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543890.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 51121054 is about 7149.8988804038. The cubic root of 51121054 is about 371.1361570168.

Adding to 51121054 its reverse (45012115), we get a palindrome (96133169).

The spelling of 51121054 in words is "fifty-one million, one hundred twenty-one thousand, fifty-four".