55214215 has 32 divisors (see below), whose sum is σ = 81368064. Its totient is φ = 35105280.

The previous prime is 55214213. The next prime is 55214219. The reversal of 55214215 is 51241255.

It is not a de Polignac number, because 55214215 - 2¹ = 55214213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55214215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55214213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41592 + ... + 42898.

It is an arithmetic number, because the mean of its divisors is an integer number (2542752).

Almost surely, 2^55214215 is an apocalyptic number.

55214215 is a deficient number, since it is larger than the sum of its proper divisors (26153849).

55214215 is a wasteful number, since it uses less digits than its factorization.

55214215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407.

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

The square root of 55214215 is about 7430.6268241650. The cubic root of 55214215 is about 380.7883334136.

The spelling of 55214215 in words is "fifty-five million, two hundred fourteen thousand, two hundred fifteen".