54531878 has 4 divisors (see below), whose sum is σ = 81797820. Its totient is φ = 27265938.

The previous prime is 54531877. The next prime is 54531887. The reversal of 54531878 is 87813545.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54531877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13632968 + ... + 13632971.

It is an arithmetic number, because the mean of its divisors is an integer number (20449455).

Almost surely, 2^54531878 is an apocalyptic number.

54531878 is a deficient number, since it is larger than the sum of its proper divisors (27265942).

54531878 is a wasteful number, since it uses less digits than its factorization.

54531878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27265941.

The product of its digits is 134400, while the sum is 41.

The square root of 54531878 is about 7384.5702650865. The cubic root of 54531878 is about 379.2132336694.

It can be divided in two parts, 545 and 31878, that added together give a palindrome (32423).

The spelling of 54531878 in words is "fifty-four million, five hundred thirty-one thousand, eight hundred seventy-eight".