54007639 has 16 divisors (see below), whose sum is σ = 63078400. Its totient is φ = 45287424.

The previous prime is 54007621. The next prime is 54007649. The reversal of 54007639 is 93670045.

It is not a de Polignac number, because 54007639 - 2⁷ = 54007511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54007609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69847 + ... + 70615.

It is an arithmetic number, because the mean of its divisors is an integer number (3942400).

Almost surely, 2^54007639 is an apocalyptic number.

54007639 is a deficient number, since it is larger than the sum of its proper divisors (9070761).

54007639 is a wasteful number, since it uses less digits than its factorization.

54007639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 54007639 is about 7348.9889780840. The cubic root of 54007639 is about 377.9941373446.

The spelling of 54007639 in words is "fifty-four million, seven thousand, six hundred thirty-nine".