52172274 has 32 divisors (see below), whose sum is σ = 130093056. Its totient is φ = 13551120.

The previous prime is 52172273. The next prime is 52172293. The reversal of 52172274 is 47227125.

52172274 = 147² + 148² + ... + 542².

52172274 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (52172273) by changing a digit.

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, 56002 + ... + 56925.

It is an arithmetic number, because the mean of its divisors is an integer number (4065408).

Almost surely, 2^52172274 is an apocalyptic number.

52172274 is an abundant number, since it is smaller than the sum of its proper divisors (77920782).

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

52172274 is a wasteful number, since it uses less digits than its factorization.

52172274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112950.

The product of its digits is 7840, while the sum is 30.

The square root of 52172274 is about 7223.0377266078. The cubic root of 52172274 is about 373.6628501925.

Adding to 52172274 its reverse (47227125), we get a palindrome (99399399).

The spelling of 52172274 in words is "fifty-two million, one hundred seventy-two thousand, two hundred seventy-four".