214215550 has 12 divisors (see below), whose sum is σ = 398441016. Its totient is φ = 85686200.

The previous prime is 214215539. The next prime is 214215563. The reversal of 214215550 is 55512412.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2142106 + ... + 2142205.

It is an arithmetic number, because the mean of its divisors is an integer number (33203418).

Almost surely, 2^214215550 is an apocalyptic number.

214215550 is a deficient number, since it is larger than the sum of its proper divisors (184225466).

214215550 is a wasteful number, since it uses less digits than its factorization.

214215550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4284323 (or 4284318 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 214215550 is about 14636.1043314128. The cubic root of 214215550 is about 598.3431604976.

Adding to 214215550 its reverse (55512412), we get a palindrome (269727962).

The spelling of 214215550 in words is "two hundred fourteen million, two hundred fifteen thousand, five hundred fifty".