51322453 has 48 divisors (see below), whose sum is σ = 69866496. Its totient is φ = 37255680.

The previous prime is 51322423. The next prime is 51322459. The reversal of 51322453 is 35422315.

It is not a de Polignac number, because 51322453 - 2¹⁷ = 51191381 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51322459) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 454125 + ... + 454237.

It is an arithmetic number, because the mean of its divisors is an integer number (1455552).

Almost surely, 2^51322453 is an apocalyptic number.

It is an amenable number.

51322453 is a deficient number, since it is larger than the sum of its proper divisors (18544043).

51322453 is a wasteful number, since it uses less digits than its factorization.

51322453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 187 counting only the distinct ones).

The product of its digits is 3600, while the sum is 25.

The square root of 51322453 is about 7163.9690814520. The cubic root of 51322453 is about 371.6229004168.

Adding to 51322453 its reverse (35422315), we get a palindrome (86744768).

The spelling of 51322453 in words is "fifty-one million, three hundred twenty-two thousand, four hundred fifty-three".