54861390 has 24 divisors (see below), whose sum is σ = 142639848. Its totient is φ = 14629680.

The previous prime is 54861383. The next prime is 54861407. The reversal of 54861390 is 9316845.

54861390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×54861390² = 6019544225464200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 304696 + ... + 304875.

It is an arithmetic number, because the mean of its divisors is an integer number (5943327).

Almost surely, 2^54861390 is an apocalyptic number.

54861390 is an abundant number, since it is smaller than the sum of its proper divisors (87778458).

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

54861390 is a wasteful number, since it uses less digits than its factorization.

54861390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609584 (or 609581 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 54861390 is about 7406.8475075433. The cubic root of 54861390 is about 379.9755062698.

The spelling of 54861390 in words is "fifty-four million, eight hundred sixty-one thousand, three hundred ninety".