53211372 has 12 divisors (see below), whose sum is σ = 124159896. Its totient is φ = 17737120.

The previous prime is 53211371. The next prime is 53211391. The reversal of 53211372 is 27311235.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×53211372² = 5662900220244768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53211371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2217129 + ... + 2217152.

It is an arithmetic number, because the mean of its divisors is an integer number (10346658).

Almost surely, 2^53211372 is an apocalyptic number.

It is an amenable number.

53211372 is an abundant number, since it is smaller than the sum of its proper divisors (70948524).

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

53211372 is a wasteful number, since it uses less digits than its factorization.

53211372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4434288 (or 4434286 counting only the distinct ones).

The product of its digits is 1260, while the sum is 24.

The square root of 53211372 is about 7294.6125325476. The cubic root of 53211372 is about 376.1272675411.

The spelling of 53211372 in words is "fifty-three million, two hundred eleven thousand, three hundred seventy-two".