55415539 has 8 divisors (see below), whose sum is σ = 56066112. Its totient is φ = 54768000.

The previous prime is 55415537. The next prime is 55415557. The reversal of 55415539 is 93551455.

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

It is a cyclic number.

It is not a de Polignac number, because 55415539 - 2¹ = 55415537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55415498 and 55415507.

It is not an unprimeable number, because it can be changed into a prime (55415537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73414 + ... + 74164.

It is an arithmetic number, because the mean of its divisors is an integer number (7008264).

Almost surely, 2^55415539 is an apocalyptic number.

55415539 is a deficient number, since it is larger than the sum of its proper divisors (650573).

55415539 is a wasteful number, since it uses less digits than its factorization.

55415539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517.

The product of its digits is 67500, while the sum is 37.

The square root of 55415539 is about 7444.1614034087. The cubic root of 55415539 is about 381.2505866156.

The spelling of 55415539 in words is "fifty-five million, four hundred fifteen thousand, five hundred thirty-nine".