54139248 has 30 divisors (see below), whose sum is σ = 151515104. Its totient is φ = 18046368.

The previous prime is 54139243. The next prime is 54139277. The reversal of 54139248 is 84293145.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54139243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 187840 + ... + 188127.

Almost surely, 2^54139248 is an apocalyptic number.

It is an amenable number.

54139248 is an abundant number, since it is smaller than the sum of its proper divisors (97375856).

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

54139248 is a wasteful number, since it uses less digits than its factorization.

54139248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375981 (or 375972 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 54139248 is about 7357.9377545614. The cubic root of 54139248 is about 378.3009277468.

The spelling of 54139248 in words is "fifty-four million, one hundred thirty-nine thousand, two hundred forty-eight".