52100040 has 32 divisors (see below), whose sum is σ = 156300480. Its totient is φ = 13893312.

The previous prime is 52100029. The next prime is 52100051. The reversal of 52100040 is 4000125.

It is an interprime number because it is at equal distance from previous prime (52100029) and next prime (52100051).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 52099989 and 52100025.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216964 + ... + 217203.

It is an arithmetic number, because the mean of its divisors is an integer number (4884390).

Almost surely, 2^52100040 is an apocalyptic number.

It is an amenable number.

52100040 is an abundant number, since it is smaller than the sum of its proper divisors (104200440).

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

52100040 is a wasteful number, since it uses less digits than its factorization.

52100040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434181 (or 434177 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 52100040 is about 7218.0357438849. The cubic root of 52100040 is about 373.4903215899.

Adding to 52100040 its reverse (4000125), we get a palindrome (56100165).

The spelling of 52100040 in words is "fifty-two million, one hundred thousand, forty".