51146453 has 4 divisors (see below), whose sum is σ = 51164928. Its totient is φ = 51127980.

The previous prime is 51146449. The next prime is 51146467. The reversal of 51146453 is 35464115.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51146453 - 2² = 51146449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51146413) 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, 4151 + ... + 10932.

It is an arithmetic number, because the mean of its divisors is an integer number (12791232).

Almost surely, 2^51146453 is an apocalyptic number.

It is an amenable number.

51146453 is a deficient number, since it is larger than the sum of its proper divisors (18475).

51146453 is a wasteful number, since it uses less digits than its factorization.

51146453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18474.

The product of its digits is 7200, while the sum is 29.

The square root of 51146453 is about 7151.6748388052. The cubic root of 51146453 is about 371.1976119739.

It can be divided in two parts, 511 and 46453, that added together give a palindrome (46964).

The spelling of 51146453 in words is "fifty-one million, one hundred forty-six thousand, four hundred fifty-three".