55394015 has 8 divisors (see below), whose sum is σ = 66573168. Its totient is φ = 44248320.

The previous prime is 55393999. The next prime is 55394021. The reversal of 55394015 is 51049355.

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

It is not a de Polignac number, because 55394015 - 2⁴ = 55393999 is a prime.

It is a Duffinian number.

It is a congruent 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, 4562 + ... + 11471.

It is an arithmetic number, because the mean of its divisors is an integer number (8321646).

Almost surely, 2^55394015 is an apocalyptic number.

55394015 is a deficient number, since it is larger than the sum of its proper divisors (11179153).

55394015 is a wasteful number, since it uses less digits than its factorization.

55394015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16729.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 55394015 is about 7442.7155662433. The cubic root of 55394015 is about 381.2012195942.

The spelling of 55394015 in words is "fifty-five million, three hundred ninety-four thousand, fifteen".