51133254 has 8 divisors (see below), whose sum is σ = 102266520. Its totient is φ = 17044416.

The previous prime is 51133241. The next prime is 51133279. The reversal of 51133254 is 45233115.

It is a sphenic number, since it is the product of 3 distinct primes.

51133254 is an admirable number.

It is a super-2 number, since 2×51133254² = 5229219329257032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4261099 + ... + 4261110.

It is an arithmetic number, because the mean of its divisors is an integer number (12783315).

Almost surely, 2^51133254 is an apocalyptic number.

51133254 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51133254 is a wasteful number, since it uses less digits than its factorization.

51133254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8522214.

The product of its digits is 1800, while the sum is 24.

The square root of 51133254 is about 7150.7519884275. The cubic root of 51133254 is about 371.1656784542.

Adding to 51133254 its reverse (45233115), we get a palindrome (96366369).

The spelling of 51133254 in words is "fifty-one million, one hundred thirty-three thousand, two hundred fifty-four".