51085974 has 16 divisors (see below), whose sum is σ = 104933808. Its totient is φ = 16568352.

The previous prime is 51085963. The next prime is 51085987. The reversal of 51085974 is 47958015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114837 + ... + 115280.

It is an arithmetic number, because the mean of its divisors is an integer number (6558363).

Almost surely, 2^51085974 is an apocalyptic number.

51085974 is an abundant number, since it is smaller than the sum of its proper divisors (53847834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51085974 is a wasteful number, since it uses less digits than its factorization.

51085974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230159.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 51085974 is about 7147.4452778598. The cubic root of 51085974 is about 371.0512446076.

The spelling of 51085974 in words is "fifty-one million, eighty-five thousand, nine hundred seventy-four".