53222451 has 4 divisors (see below), whose sum is σ = 70963272. Its totient is φ = 35481632.

The previous prime is 53222431. The next prime is 53222459. The reversal of 53222451 is 15422235.

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

It is a cyclic number.

It is not a de Polignac number, because 53222451 - 2⁵ = 53222419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53222459) 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, 8870406 + ... + 8870411.

It is an arithmetic number, because the mean of its divisors is an integer number (17740818).

Almost surely, 2^53222451 is an apocalyptic number.

53222451 is a deficient number, since it is larger than the sum of its proper divisors (17740821).

53222451 is a wasteful number, since it uses less digits than its factorization.

53222451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17740820.

The product of its digits is 2400, while the sum is 24.

The square root of 53222451 is about 7295.3718890815. The cubic root of 53222451 is about 376.1533698865.

Adding to 53222451 its reverse (15422235), we get a palindrome (68644686).

The spelling of 53222451 in words is "fifty-three million, two hundred twenty-two thousand, four hundred fifty-one".