51157433 has 4 divisors (see below), whose sum is σ = 51183348. Its totient is φ = 51131520.

The previous prime is 51157429. The next prime is 51157439. The reversal of 51157433 is 33475115.

51157433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14348944 + 36808489 = 3788^2 + 6067^2 .

It is a cyclic number.

It is not a de Polignac number, because 51157433 - 2² = 51157429 is a prime.

It is a super-2 number, since 2×51157433² = 5234165902298978, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51157396 and 51157405.

It is not an unprimeable number, because it can be changed into a prime (51157439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9728 + ... + 14033.

It is an arithmetic number, because the mean of its divisors is an integer number (12795837).

Almost surely, 2^51157433 is an apocalyptic number.

It is an amenable number.

51157433 is a deficient number, since it is larger than the sum of its proper divisors (25915).

51157433 is a wasteful number, since it uses less digits than its factorization.

51157433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25914.

The product of its digits is 6300, while the sum is 29.

The square root of 51157433 is about 7152.4424499607. The cubic root of 51157433 is about 371.2241726828.

The spelling of 51157433 in words is "fifty-one million, one hundred fifty-seven thousand, four hundred thirty-three".