54947131 has 4 divisors (see below), whose sum is σ = 55491264. Its totient is φ = 54403000.

The previous prime is 54947129. The next prime is 54947149. The reversal of 54947131 is 13174945.

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 54947131 - 2¹ = 54947129 is a prime.

It is a super-2 number, since 2×54947131² = 6038374410262322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54947171) 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, 271915 + ... + 272116.

It is an arithmetic number, because the mean of its divisors is an integer number (13872816).

Almost surely, 2^54947131 is an apocalyptic number.

54947131 is a deficient number, since it is larger than the sum of its proper divisors (544133).

54947131 is a wasteful number, since it uses less digits than its factorization.

54947131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544132.

The product of its digits is 15120, while the sum is 34.

The square root of 54947131 is about 7412.6332028504. The cubic root of 54947131 is about 380.1733534999.

The spelling of 54947131 in words is "fifty-four million, nine hundred forty-seven thousand, one hundred thirty-one".