212523648 has 32 divisors (see below), whose sum is σ = 564516960. Its totient is φ = 70841088.

The previous prime is 212523643. The next prime is 212523653. The reversal of 212523648 is 846325212.

It is an interprime number because it is at equal distance from previous prime (212523643) and next prime (212523653).

It is a tau number, because it is divible by the number of its divisors (32).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (212523643) 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, 276340 + ... + 277107.

It is an arithmetic number, because the mean of its divisors is an integer number (17641155).

Almost surely, 2^212523648 is an apocalyptic number.

It is an amenable number.

212523648 is an abundant number, since it is smaller than the sum of its proper divisors (351993312).

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

212523648 is an equidigital number, since it uses as much as digits as its factorization.

212523648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553464 (or 553452 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 212523648 is about 14578.1908342565. The cubic root of 212523648 is about 596.7637312136.

The spelling of 212523648 in words is "two hundred twelve million, five hundred twenty-three thousand, six hundred forty-eight".