54539947 has 8 divisors (see below), whose sum is σ = 67997952. Its totient is φ = 42498600.

The previous prime is 54539911. The next prime is 54539951. The reversal of 54539947 is 74993545.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54539947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54539897 and 54539906.

It is not an unprimeable number, because it can be changed into a prime (54539957) 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, 354079 + ... + 354232.

It is an arithmetic number, because the mean of its divisors is an integer number (8499744).

Almost surely, 2^54539947 is an apocalyptic number.

54539947 is a deficient number, since it is larger than the sum of its proper divisors (13458005).

54539947 is a wasteful number, since it uses less digits than its factorization.

54539947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708329.

The product of its digits is 680400, while the sum is 46.

The square root of 54539947 is about 7385.1165867574. The cubic root of 54539947 is about 379.2319366176.

It can be divided in two parts, 5453 and 9947, that added together give a triangular number (15400 = T₁₇₅).

The spelling of 54539947 in words is "fifty-four million, five hundred thirty-nine thousand, nine hundred forty-seven".