54391590 has 48 divisors (see below), whose sum is σ = 154277136. Its totient is φ = 13185600.

The previous prime is 54391583. The next prime is 54391613. The reversal of 54391590 is 9519345.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26481 + ... + 28460.

It is an arithmetic number, because the mean of its divisors is an integer number (3214107).

Almost surely, 2^54391590 is an apocalyptic number.

54391590 is an abundant number, since it is smaller than the sum of its proper divisors (99885546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54391590 is a wasteful number, since it uses less digits than its factorization.

54391590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54965 (or 54962 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 54391590 is about 7375.0654234386. The cubic root of 54391590 is about 378.8877680694.

The spelling of 54391590 in words is "fifty-four million, three hundred ninety-one thousand, five hundred ninety".