54389251 has 4 divisors (see below), whose sum is σ = 62159152. Its totient is φ = 46619352.

The previous prime is 54389249. The next prime is 54389261. The reversal of 54389251 is 15298345.

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

It is a cyclic number.

It is not a de Polignac number, because 54389251 - 2¹ = 54389249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54389251.

It is not an unprimeable number, because it can be changed into a prime (54389201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3884940 + ... + 3884953.

It is an arithmetic number, because the mean of its divisors is an integer number (15539788).

Almost surely, 2^54389251 is an apocalyptic number.

54389251 is a deficient number, since it is larger than the sum of its proper divisors (7769901).

54389251 is an equidigital number, since it uses as much as digits as its factorization.

54389251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7769900.

The product of its digits is 43200, while the sum is 37.

The square root of 54389251 is about 7374.9068468693. The cubic root of 54389251 is about 378.8823368915.

The spelling of 54389251 in words is "fifty-four million, three hundred eighty-nine thousand, two hundred fifty-one".