51461005 has 16 divisors (see below), whose sum is σ = 65816064. Its totient is φ = 38536960.

The previous prime is 51460979. The next prime is 51461017. The reversal of 51461005 is 50016415.

51461005 = 2264² + 2265² + ... + 2273².

51461005 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 51461005 - 2⁵ = 51460973 is a prime.

It is a super-2 number, since 2×51461005² = 5296470071220050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 645 + ... + 10165.

It is an arithmetic number, because the mean of its divisors is an integer number (4113504).

Almost surely, 2^51461005 is an apocalyptic number.

It is an amenable number.

51461005 is a deficient number, since it is larger than the sum of its proper divisors (14355059).

51461005 is a wasteful number, since it uses less digits than its factorization.

51461005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9596.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 51461005 is about 7173.6326223190. The cubic root of 51461005 is about 371.9570155945.

The spelling of 51461005 in words is "fifty-one million, four hundred sixty-one thousand, five".