51133151 has 4 divisors (see below), whose sum is σ = 51148704. Its totient is φ = 51117600.

The previous prime is 51133111. The next prime is 51133171. The reversal of 51133151 is 15133115.

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 51133151 - 2⁶ = 51133087 is a prime.

It is a super-2 number, since 2×51133151² = 5229198262377602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51133111) 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, 695 + ... + 10136.

It is an arithmetic number, because the mean of its divisors is an integer number (12787176).

Almost surely, 2^51133151 is an apocalyptic number.

51133151 is a deficient number, since it is larger than the sum of its proper divisors (15553).

51133151 is a wasteful number, since it uses less digits than its factorization.

51133151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15552.

The product of its digits is 225, while the sum is 20.

The square root of 51133151 is about 7150.7447863841. The cubic root of 51133151 is about 371.1654292354.

Adding to 51133151 its reverse (15133115), we get a palindrome (66266266).

The spelling of 51133151 in words is "fifty-one million, one hundred thirty-three thousand, one hundred fifty-one".