40210025205 has 48 divisors (see below), whose sum is σ = 74424781440. Its totient is φ = 18159932544.

The previous prime is 40210025179. The next prime is 40210025237. The reversal of 40210025205 is 50252001204.

It is a happy number.

It is not a de Polignac number, because 40210025205 - 2¹² = 40210021109 is a prime.

It is a super-2 number, since 2×40210025205² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 695551 + ... + 751139.

It is an arithmetic number, because the mean of its divisors is an integer number (1550516280).

Almost surely, 2^40210025205 is an apocalyptic number.

It is an amenable number.

40210025205 is a deficient number, since it is larger than the sum of its proper divisors (34214756235).

40210025205 is an equidigital number, since it uses as much as digits as its factorization.

40210025205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55770 (or 55687 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

Adding to 40210025205 its reverse (50252001204), we get a palindrome (90462026409).

The spelling of 40210025205 in words is "forty billion, two hundred ten million, twenty-five thousand, two hundred five".