51011153 has 4 divisors (see below), whose sum is σ = 51175488. Its totient is φ = 50846820.

The previous prime is 51011141. The next prime is 51011167. The reversal of 51011153 is 35111015.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51011153 - 2¹⁰ = 51010129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51011113) 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, 81701 + ... + 82322.

It is an arithmetic number, because the mean of its divisors is an integer number (12793872).

Almost surely, 2^51011153 is an apocalyptic number.

It is an amenable number.

51011153 is a deficient number, since it is larger than the sum of its proper divisors (164335).

51011153 is a wasteful number, since it uses less digits than its factorization.

51011153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164334.

The product of its (nonzero) digits is 75, while the sum is 17.

The square root of 51011153 is about 7142.2092520452. The cubic root of 51011153 is about 370.8700077126.

Adding to 51011153 its reverse (35111015), we get a palindrome (86122168).

The spelling of 51011153 in words is "fifty-one million, eleven thousand, one hundred fifty-three".