54649087 has 4 divisors (see below), whose sum is σ = 55920040. Its totient is φ = 53378136.

The previous prime is 54649057. The next prime is 54649097. The reversal of 54649087 is 78094645.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78094645 = 5 ⋅15618929.

It is not a de Polignac number, because 54649087 - 2¹⁹ = 54124799 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 1270909 = 54649087 / (5 + 4 + 6 + 4 + 9 + 0 + 8 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54649057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 635412 + ... + 635497.

It is an arithmetic number, because the mean of its divisors is an integer number (13980010).

Almost surely, 2^54649087 is an apocalyptic number.

54649087 is a deficient number, since it is larger than the sum of its proper divisors (1270953).

54649087 is a wasteful number, since it uses less digits than its factorization.

54649087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270952.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 54649087 is about 7392.5020798103. The cubic root of 54649087 is about 379.4847286741.

The spelling of 54649087 in words is "fifty-four million, six hundred forty-nine thousand, eighty-seven".