55415549 has 8 divisors (see below), whose sum is σ = 65516160. Its totient is φ = 45860976.

The previous prime is 55415537. The next prime is 55415557. The reversal of 55415549 is 94551455.

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

It is not a de Polignac number, because 55415549 - 2⁸ = 55415293 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55415849) 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, 136289 + ... + 136694.

It is an arithmetic number, because the mean of its divisors is an integer number (8189520).

Almost surely, 2^55415549 is an apocalyptic number.

It is an amenable number.

55415549 is a deficient number, since it is larger than the sum of its proper divisors (10100611).

55415549 is a wasteful number, since it uses less digits than its factorization.

55415549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273019.

The product of its digits is 90000, while the sum is 38.

The square root of 55415549 is about 7444.1620750760. The cubic root of 55415549 is about 381.2506095484.

The spelling of 55415549 in words is "fifty-five million, four hundred fifteen thousand, five hundred forty-nine".