55154519 has 8 divisors (see below), whose sum is σ = 63275520. Its totient is φ = 47093976.

The previous prime is 55154507. The next prime is 55154527. The reversal of 55154519 is 91545155.

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 55154519 - 2¹⁶ = 55088983 is a prime.

It is a super-2 number, since 2×55154519² = 6084041932242722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55154569) 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, 13139 + ... + 16820.

It is an arithmetic number, because the mean of its divisors is an integer number (7909440).

Almost surely, 2^55154519 is an apocalyptic number.

55154519 is a deficient number, since it is larger than the sum of its proper divisors (8121001).

55154519 is a wasteful number, since it uses less digits than its factorization.

55154519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30229.

The product of its digits is 22500, while the sum is 35.

The square root of 55154519 is about 7426.6088492663. The cubic root of 55154519 is about 380.6510515107.

The spelling of 55154519 in words is "fifty-five million, one hundred fifty-four thousand, five hundred nineteen".