51133377 has 8 divisors (see below), whose sum is σ = 68214016. Its totient is φ = 34070832.

The previous prime is 51133367. The next prime is 51133391. The reversal of 51133377 is 77333115.

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

It is not a de Polignac number, because 51133377 - 2¹⁰ = 51132353 is a prime.

It is a super-2 number, since 2×51133377² = 5229244486848258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51133307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4848 + ... + 11214.

It is an arithmetic number, because the mean of its divisors is an integer number (8526752).

Almost surely, 2^51133377 is an apocalyptic number.

It is an amenable number.

51133377 is a deficient number, since it is larger than the sum of its proper divisors (17080639).

51133377 is a wasteful number, since it uses less digits than its factorization.

51133377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9047.

The product of its digits is 6615, while the sum is 30.

The square root of 51133377 is about 7150.7605889164. The cubic root of 51133377 is about 371.1659760644.

The spelling of 51133377 in words is "fifty-one million, one hundred thirty-three thousand, three hundred seventy-seven".