54440487 has 24 divisors (see below), whose sum is σ = 81476928. Its totient is φ = 35006400.

The previous prime is 54440479. The next prime is 54440501. The reversal of 54440487 is 78404445.

It is not a de Polignac number, because 54440487 - 2³ = 54440479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54440467) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28162 + ... + 30032.

It is an arithmetic number, because the mean of its divisors is an integer number (3394872).

Almost surely, 2^54440487 is an apocalyptic number.

54440487 is a deficient number, since it is larger than the sum of its proper divisors (27036441).

54440487 is a wasteful number, since it uses less digits than its factorization.

54440487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991 (or 1988 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 36.

The square root of 54440487 is about 7378.3797001781. The cubic root of 54440487 is about 379.0012716846.

The spelling of 54440487 in words is "fifty-four million, four hundred forty thousand, four hundred eighty-seven".