52131018 has 16 divisors (see below), whose sum is σ = 108795456. Its totient is φ = 16621440.

The previous prime is 52131017. The next prime is 52131019. The reversal of 52131018 is 81013125.

It is an interprime number because it is at equal distance from previous prime (52131017) and next prime (52131019).

It is a junction number, because it is equal to n+sod(n) for n = 52130985 and 52131003.

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 7 ways as a sum of consecutive naturals, for example, 188743 + ... + 189018.

It is an arithmetic number, because the mean of its divisors is an integer number (6799716).

Almost surely, 2^52131018 is an apocalyptic number.

52131018 is an abundant number, since it is smaller than the sum of its proper divisors (56664438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52131018 is a wasteful number, since it uses less digits than its factorization.

52131018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377789.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 52131018 is about 7220.1812996628. The cubic root of 52131018 is about 373.5643310713.

The spelling of 52131018 in words is "fifty-two million, one hundred thirty-one thousand, eighteen".