55124290 has 32 divisors (see below), whose sum is σ = 108682560. Its totient is φ = 20005824.

The previous prime is 55124249. The next prime is 55124291. The reversal of 55124290 is 9242155.

It is not an unprimeable number, because it can be changed into a prime (55124291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4077 + ... + 11263.

It is an arithmetic number, because the mean of its divisors is an integer number (3396330).

Almost surely, 2^55124290 is an apocalyptic number.

55124290 is a deficient number, since it is larger than the sum of its proper divisors (53558270).

55124290 is a wasteful number, since it uses less digits than its factorization.

55124290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7266.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 55124290 is about 7424.5733884177. The cubic root of 55124290 is about 380.5814965968.

The spelling of 55124290 in words is "fifty-five million, one hundred twenty-four thousand, two hundred ninety".