55021054 has 8 divisors (see below), whose sum is σ = 90034488. Its totient is φ = 25009560.

The previous prime is 55021039. The next prime is 55021069. The reversal of 55021054 is 45012055.

It is an interprime number because it is at equal distance from previous prime (55021039) and next prime (55021069).

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 2500957 = 55021054 / (5 + 5 + 0 + 2 + 1 + 0 + 5 + 4).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1250457 + ... + 1250500.

It is an arithmetic number, because the mean of its divisors is an integer number (11254311).

Almost surely, 2^55021054 is an apocalyptic number.

55021054 is a deficient number, since it is larger than the sum of its proper divisors (35013434).

55021054 is a wasteful number, since it uses less digits than its factorization.

55021054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500970.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 55021054 is about 7417.6178116697. The cubic root of 55021054 is about 380.3437655590.

It can be divided in two parts, 5502 and 1054, that added together give a palindrome (6556).

The spelling of 55021054 in words is "fifty-five million, twenty-one thousand, fifty-four".