51120453 has 4 divisors (see below), whose sum is σ = 68160608. Its totient is φ = 34080300.

The previous prime is 51120437. The next prime is 51120463. The reversal of 51120453 is 35402115.

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 not a de Polignac number, because 51120453 - 2⁴ = 51120437 is a prime.

It is a super-2 number, since 2×51120453² = 5226601429850418, 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 (51120403) 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, 8520073 + ... + 8520078.

It is an arithmetic number, because the mean of its divisors is an integer number (17040152).

Almost surely, 2^51120453 is an apocalyptic number.

It is an amenable number.

51120453 is a deficient number, since it is larger than the sum of its proper divisors (17040155).

51120453 is a wasteful number, since it uses less digits than its factorization.

51120453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17040154.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 51120453 is about 7149.8568517139. The cubic root of 51120453 is about 371.1347026017.

Adding to 51120453 its reverse (35402115), we get a palindrome (86522568).

The spelling of 51120453 in words is "fifty-one million, one hundred twenty thousand, four hundred fifty-three".