51152511 has 8 divisors (see below), whose sum is σ = 70403584. Its totient is φ = 33001560.

The previous prime is 51152489. The next prime is 51152513. The reversal of 51152511 is 11525115.

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

It is not a de Polignac number, because 51152511 - 2⁹ = 51151999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51152513) 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, 274921 + ... + 275106.

It is an arithmetic number, because the mean of its divisors is an integer number (8800448).

Almost surely, 2^51152511 is an apocalyptic number.

51152511 is a deficient number, since it is larger than the sum of its proper divisors (19251073).

51152511 is a wasteful number, since it uses less digits than its factorization.

51152511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550061.

The product of its digits is 250, while the sum is 21.

The square root of 51152511 is about 7152.0983634176. The cubic root of 51152511 is about 371.2122667950.

Adding to 51152511 its reverse (11525115), we get a palindrome (62677626).

It can be divided in two parts, 5115 and 2511, that added together give a triangular number (7626 = T₁₂₃).

The spelling of 51152511 in words is "fifty-one million, one hundred fifty-two thousand, five hundred eleven".