54715251 has 4 divisors (see below), whose sum is σ = 72953672. Its totient is φ = 36476832.

The previous prime is 54715237. The next prime is 54715253. The reversal of 54715251 is 15251745.

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

It is not a de Polignac number, because 54715251 - 2⁶ = 54715187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54715253) 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, 9119206 + ... + 9119211.

It is an arithmetic number, because the mean of its divisors is an integer number (18238418).

Almost surely, 2^54715251 is an apocalyptic number.

54715251 is a deficient number, since it is larger than the sum of its proper divisors (18238421).

54715251 is a wasteful number, since it uses less digits than its factorization.

54715251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18238420.

The product of its digits is 7000, while the sum is 30.

The square root of 54715251 is about 7396.9758009608. The cubic root of 54715251 is about 379.6378151078.

Adding to 54715251 its reverse (15251745), we get a palindrome (69966996).

The spelling of 54715251 in words is "fifty-four million, seven hundred fifteen thousand, two hundred fifty-one".