55241515 has 32 divisors (see below), whose sum is σ = 79727616. Its totient is φ = 35925120.

The previous prime is 55241513. The next prime is 55241533. The reversal of 55241515 is 51514255.

It is not a de Polignac number, because 55241515 - 2¹ = 55241513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55241513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131005 + ... + 131425.

It is an arithmetic number, because the mean of its divisors is an integer number (2491488).

Almost surely, 2^55241515 is an apocalyptic number.

55241515 is a deficient number, since it is larger than the sum of its proper divisors (24486101).

55241515 is a wasteful number, since it uses less digits than its factorization.

55241515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619.

The product of its digits is 5000, while the sum is 28.

The square root of 55241515 is about 7432.4635888782. The cubic root of 55241515 is about 380.8510817998.

The spelling of 55241515 in words is "fifty-five million, two hundred forty-one thousand, five hundred fifteen".