55214385 has 32 divisors (see below), whose sum is σ = 93985920. Its totient is φ = 27583488.

The previous prime is 55214381. The next prime is 55214387. The reversal of 55214385 is 58341255.

It is not a de Polignac number, because 55214385 - 2² = 55214381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55214381) 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, 74346 + ... + 75084.

It is an arithmetic number, because the mean of its divisors is an integer number (2937060).

Almost surely, 2^55214385 is an apocalyptic number.

It is an amenable number.

55214385 is a deficient number, since it is larger than the sum of its proper divisors (38771535).

55214385 is a wasteful number, since it uses less digits than its factorization.

55214385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057.

The product of its digits is 24000, while the sum is 33.

The square root of 55214385 is about 7430.6382632988. The cubic root of 55214385 is about 380.7887242184.

The spelling of 55214385 in words is "fifty-five million, two hundred fourteen thousand, three hundred eighty-five".