52211930 has 16 divisors (see below), whose sum is σ = 99510120. Its totient is φ = 19656192.

The previous prime is 52211923. The next prime is 52211953. The reversal of 52211930 is 3911225.

52211930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 42471289 + 9740641 = 6517^2 + 3121^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52211896 and 52211905.

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 7 ways as a sum of consecutive naturals, for example, 153395 + ... + 153734.

Almost surely, 2^52211930 is an apocalyptic number.

52211930 is a deficient number, since it is larger than the sum of its proper divisors (47298190).

52211930 is a wasteful number, since it uses less digits than its factorization.

52211930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307153.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 52211930 is about 7225.7823105876. The cubic root of 52211930 is about 373.7574995792.

The spelling of 52211930 in words is "fifty-two million, two hundred eleven thousand, nine hundred thirty".