55021465 has 8 divisors (see below), whose sum is σ = 66431808. Its totient is φ = 43746480.

The previous prime is 55021423. The next prime is 55021471. The reversal of 55021465 is 56412055.

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

It is not a de Polignac number, because 55021465 - 2¹⁷ = 54890393 is a prime.

It is a super-2 number, since 2×55021465² = 6054723221492450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32941 + ... + 34570.

It is an arithmetic number, because the mean of its divisors is an integer number (8303976).

Almost surely, 2^55021465 is an apocalyptic number.

It is an amenable number.

55021465 is a deficient number, since it is larger than the sum of its proper divisors (11410343).

55021465 is a wasteful number, since it uses less digits than its factorization.

55021465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67679.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 55021465 is about 7417.6455159302. The cubic root of 55021465 is about 380.3447125958.

The spelling of 55021465 in words is "fifty-five million, twenty-one thousand, four hundred sixty-five".