212253506 has 8 divisors (see below), whose sum is σ = 322864704. Its totient is φ = 104631940.

The previous prime is 212253491. The next prime is 212253529. The reversal of 212253506 is 605352212.

212253506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 747230 + ... + 747513.

It is an arithmetic number, because the mean of its divisors is an integer number (40358088).

Almost surely, 2^212253506 is an apocalyptic number.

212253506 is a deficient number, since it is larger than the sum of its proper divisors (110611198).

212253506 is a wasteful number, since it uses less digits than its factorization.

212253506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494816.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 212253506 is about 14568.9226094451. The cubic root of 212253506 is about 596.5107722236.

The spelling of 212253506 in words is "two hundred twelve million, two hundred fifty-three thousand, five hundred six".