54947407 has 4 divisors (see below), whose sum is σ = 56719936. Its totient is φ = 53174880.

The previous prime is 54947381. The next prime is 54947413. The reversal of 54947407 is 70474945.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54947407 - 2⁷ = 54947279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54947407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54947807) 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, 886218 + ... + 886279.

It is an arithmetic number, because the mean of its divisors is an integer number (14179984).

Almost surely, 2^54947407 is an apocalyptic number.

54947407 is a deficient number, since it is larger than the sum of its proper divisors (1772529).

54947407 is a wasteful number, since it uses less digits than its factorization.

54947407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772528.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 54947407 is about 7412.6518196931. The cubic root of 54947407 is about 380.1739900370.

The spelling of 54947407 in words is "fifty-four million, nine hundred forty-seven thousand, four hundred seven".