51032453 has 4 divisors (see below), whose sum is σ = 54034380. Its totient is φ = 48030528.

The previous prime is 51032447. The next prime is 51032477. The reversal of 51032453 is 35423015.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35423015 = 5 ⋅7084603.

It can be written as a sum of positive squares in 2 ways, for example, as 31114084 + 19918369 = 5578^2 + 4463^2 .

It is a cyclic number.

It is not a de Polignac number, because 51032453 - 2⁶ = 51032389 is a prime.

It is a super-2 number, since 2×51032453² = 5208622518394418, 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 (51032153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1500938 + ... + 1500971.

It is an arithmetic number, because the mean of its divisors is an integer number (13508595).

Almost surely, 2^51032453 is an apocalyptic number.

It is an amenable number.

51032453 is a deficient number, since it is larger than the sum of its proper divisors (3001927).

51032453 is a wasteful number, since it uses less digits than its factorization.

51032453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3001926.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 51032453 is about 7143.7002316727. The cubic root of 51032453 is about 370.9216201638.

Adding to 51032453 its reverse (35423015), we get a palindrome (86455468).

The spelling of 51032453 in words is "fifty-one million, thirty-two thousand, four hundred fifty-three".