54013251 has 4 divisors (see below), whose sum is σ = 72017672. Its totient is φ = 36008832.

The previous prime is 54013249. The next prime is 54013291. The reversal of 54013251 is 15231045.

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

It is not a de Polignac number, because 54013251 - 2¹ = 54013249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54013241) 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, 9002206 + ... + 9002211.

It is an arithmetic number, because the mean of its divisors is an integer number (18004418).

Almost surely, 2^54013251 is an apocalyptic number.

54013251 is a deficient number, since it is larger than the sum of its proper divisors (18004421).

54013251 is a wasteful number, since it uses less digits than its factorization.

54013251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18004420.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 54013251 is about 7349.3707893942. The cubic root of 54013251 is about 378.0072295026.

Adding to 54013251 its reverse (15231045), we get a palindrome (69244296).

The spelling of 54013251 in words is "fifty-four million, thirteen thousand, two hundred fifty-one".