6406020250 has 64 divisors (see below), whose sum is σ = 14177928960. Its totient is φ = 2120596800.

The previous prime is 6406020233. The next prime is 6406020253. The reversal of 6406020250 is 520206046.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (6406020253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12364 + ... + 113863.

It is an arithmetic number, because the mean of its divisors is an integer number (221530140).

Almost surely, 2^6406020250 is an apocalyptic number.

6406020250 is an abundant number, since it is smaller than the sum of its proper divisors (7771908710).

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

6406020250 is a wasteful number, since it uses less digits than its factorization.

6406020250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126280 (or 126270 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 6406020250 is about 80037.6177181705. The cubic root of 6406020250 is about 1857.2175077769.

Adding to 6406020250 its reverse (520206046), we get a palindrome (6926226296).

The spelling of 6406020250 in words is "six billion, four hundred six million, twenty thousand, two hundred fifty".