51112553 has 8 divisors (see below), whose sum is σ = 51576000. Its totient is φ = 50651568.

The previous prime is 51112541. The next prime is 51112573. The reversal of 51112553 is 35521115.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 51112553 - 2¹² = 51108457 is a prime.

It is a super-2 number, since 2×51112553² = 5224986148355618, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51112573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83075 + ... + 83687.

It is an arithmetic number, because the mean of its divisors is an integer number (6447000).

Almost surely, 2^51112553 is an apocalyptic number.

It is an amenable number.

51112553 is a deficient number, since it is larger than the sum of its proper divisors (463447).

51112553 is a wasteful number, since it uses less digits than its factorization.

51112553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231.

The product of its digits is 750, while the sum is 23.

The square root of 51112553 is about 7149.3043717553. The cubic root of 51112553 is about 371.1155836058.

Adding to 51112553 its reverse (35521115), we get a palindrome (86633668).

The spelling of 51112553 in words is "fifty-one million, one hundred twelve thousand, five hundred fifty-three".