52131011 has 4 divisors (see below), whose sum is σ = 52167024. Its totient is φ = 52095000.

The previous prime is 52130999. The next prime is 52131017. The reversal of 52131011 is 11013125.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52131011 - 2¹⁸ = 51868867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52131017) 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, 15740 + ... + 18761.

It is an arithmetic number, because the mean of its divisors is an integer number (13041756).

Almost surely, 2^52131011 is an apocalyptic number.

52131011 is a deficient number, since it is larger than the sum of its proper divisors (36013).

52131011 is a wasteful number, since it uses less digits than its factorization.

52131011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36012.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 52131011 is about 7220.1808149104. The cubic root of 52131011 is about 373.5643143509.

Adding to 52131011 its reverse (11013125), we get a palindrome (63144136).

The spelling of 52131011 in words is "fifty-two million, one hundred thirty-one thousand, eleven".