51122553 has 8 divisors (see below), whose sum is σ = 72173088. Its totient is φ = 32076864.

The previous prime is 51122551. The next prime is 51122573. The reversal of 51122553 is 35522115.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51122553 - 2¹ = 51122551 is a prime.

It is a super-2 number, since 2×51122553² = 5227030850475618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51122551) 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 7 ways as a sum of consecutive naturals, for example, 501151 + ... + 501252.

It is an arithmetic number, because the mean of its divisors is an integer number (9021636).

Almost surely, 2^51122553 is an apocalyptic number.

It is an amenable number.

51122553 is a deficient number, since it is larger than the sum of its proper divisors (21050535).

51122553 is a wasteful number, since it uses less digits than its factorization.

51122553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002423.

The product of its digits is 1500, while the sum is 24.

The square root of 51122553 is about 7150.0037062927. The cubic root of 51122553 is about 371.1397845350.

Adding to 51122553 its reverse (35522115), we get a palindrome (86644668).

The spelling of 51122553 in words is "fifty-one million, one hundred twenty-two thousand, five hundred fifty-three".