51974982 has 48 divisors (see below), whose sum is σ = 116093952. Its totient is φ = 16798320.

The previous prime is 51974981. The next prime is 51974983. The reversal of 51974982 is 28947915.

It is an interprime number because it is at equal distance from previous prime (51974981) and next prime (51974983).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51974981) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 85323 + ... + 85929.

It is an arithmetic number, because the mean of its divisors is an integer number (2418624).

Almost surely, 2^51974982 is an apocalyptic number.

51974982 is an abundant number, since it is smaller than the sum of its proper divisors (64118970).

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

51974982 is a wasteful number, since it uses less digits than its factorization.

51974982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753 (or 750 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 51974982 is about 7209.3676560431. The cubic root of 51974982 is about 373.1912471281.

The spelling of 51974982 in words is "fifty-one million, nine hundred seventy-four thousand, nine hundred eighty-two".