51970182 has 16 divisors (see below), whose sum is σ = 113389632. Its totient is φ = 15748520.

The previous prime is 51970159. The next prime is 51970183. The reversal of 51970182 is 28107915.

It is a super-2 number, since 2×51970182² = 5401799634226248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51970183) 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, 393648 + ... + 393779.

It is an arithmetic number, because the mean of its divisors is an integer number (7086852).

Almost surely, 2^51970182 is an apocalyptic number.

51970182 is an abundant number, since it is smaller than the sum of its proper divisors (61419450).

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

51970182 is a wasteful number, since it uses less digits than its factorization.

51970182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787443.

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 51970182 is about 7209.0347481476. The cubic root of 51970182 is about 373.1797584396.

The spelling of 51970182 in words is "fifty-one million, nine hundred seventy thousand, one hundred eighty-two".