51113853 has 24 divisors (see below), whose sum is σ = 85208448. Its totient is φ = 28920672.

The previous prime is 51113837. The next prime is 51113879. The reversal of 51113853 is 35831115.

It is not a de Polignac number, because 51113853 - 2⁴ = 51113837 is a prime.

It is a super-2 number, since 2×51113853² = 5225251937011218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51113813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2551 + ... + 10427.

It is an arithmetic number, because the mean of its divisors is an integer number (3550352).

Almost surely, 2^51113853 is an apocalyptic number.

It is an amenable number.

51113853 is a deficient number, since it is larger than the sum of its proper divisors (34094595).

51113853 is a wasteful number, since it uses less digits than its factorization.

51113853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7993 (or 7990 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 51113853 is about 7149.3952891136. The cubic root of 51113853 is about 371.1187299051.

Adding to 51113853 its reverse (35831115), we get a palindrome (86944968).

The spelling of 51113853 in words is "fifty-one million, one hundred thirteen thousand, eight hundred fifty-three".