55215754 has 8 divisors (see below), whose sum is σ = 90353088. Its totient is φ = 25098060.

The previous prime is 55215749. The next prime is 55215781. The reversal of 55215754 is 45751255.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1254882 + ... + 1254925.

It is an arithmetic number, because the mean of its divisors is an integer number (11294136).

Almost surely, 2^55215754 is an apocalyptic number.

55215754 is a deficient number, since it is larger than the sum of its proper divisors (35137334).

55215754 is a wasteful number, since it uses less digits than its factorization.

55215754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2509820.

The product of its digits is 35000, while the sum is 34.

The square root of 55215754 is about 7430.7303813286. The cubic root of 55215754 is about 380.7918713177.

The spelling of 55215754 in words is "fifty-five million, two hundred fifteen thousand, seven hundred fifty-four".