212256475 has 24 divisors (see below), whose sum is σ = 280763280. Its totient is φ = 158622720.

The previous prime is 212256461. The next prime is 212256487. The reversal of 212256475 is 574652212.

It is not a de Polignac number, because 212256475 - 2⁹ = 212255963 is a prime.

It is a super-2 number, since 2×212256475² = 90105622358851250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212256475.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57279 + ... + 60871.

It is an arithmetic number, because the mean of its divisors is an integer number (11698470).

Almost surely, 2^212256475 is an apocalyptic number.

212256475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

212256475 is a deficient number, since it is larger than the sum of its proper divisors (68506805).

212256475 is a wasteful number, since it uses less digits than its factorization.

212256475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3759 (or 3754 counting only the distinct ones).

The product of its digits is 33600, while the sum is 34.

The square root of 212256475 is about 14569.0245040634. The cubic root of 212256475 is about 596.5135535396.

The spelling of 212256475 in words is "two hundred twelve million, two hundred fifty-six thousand, four hundred seventy-five".