54487739 has 10 divisors (see below), whose sum is σ = 57258300. Its totient is φ = 51836340.

The previous prime is 54487733. The next prime is 54487789. The reversal of 54487739 is 93778445.

It is not a de Polignac number, because 54487739 - 2²⁰ = 53439163 is a prime.

It is a Duffinian number.

Its product of digits (846720) is a multiple of the sum of its prime divisors (90).

It is a junction number, because it is equal to n+sod(n) for n = 54487693 and 54487702.

It is not an unprimeable number, because it can be changed into a prime (54487733) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 923492 + ... + 923550.

It is an arithmetic number, because the mean of its divisors is an integer number (5725830).

Almost surely, 2^54487739 is an apocalyptic number.

54487739 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

54487739 is a deficient number, since it is larger than the sum of its proper divisors (2770561).

54487739 is an frugal number, since it uses more digits than its factorization.

54487739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 90 counting only the distinct ones).

The product of its digits is 846720, while the sum is 47.

The square root of 54487739 is about 7381.5810637017. The cubic root of 54487739 is about 379.1108922403.

The spelling of 54487739 in words is "fifty-four million, four hundred eighty-seven thousand, seven hundred thirty-nine".