212056455 has 32 divisors (see below), whose sum is σ = 366125760. Its totient is φ = 104186880.

The previous prime is 212056441. The next prime is 212056483. The reversal of 212056455 is 554650212.

It is not a de Polignac number, because 212056455 - 2⁶ = 212056391 is a prime.

It is a super-3 number, since 3×212056455³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147681 + ... + 149109.

It is an arithmetic number, because the mean of its divisors is an integer number (11441430).

Almost surely, 2^212056455 is an apocalyptic number.

212056455 is a deficient number, since it is larger than the sum of its proper divisors (154069305).

212056455 is a wasteful number, since it uses less digits than its factorization.

212056455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2211.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 212056455 is about 14562.1583221719. The cubic root of 212056455 is about 596.3261196983.

The spelling of 212056455 in words is "two hundred twelve million, fifty-six thousand, four hundred fifty-five".