16250020 has 12 divisors (see below), whose sum is σ = 34125084. Its totient is φ = 6500000.

The previous prime is 16250009. The next prime is 16250023. The reversal of 16250020 is 2005261.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2663424 + 13586596 = 1632^2 + 3686^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16249976 and 16250003.

It is not an unprimeable number, because it can be changed into a prime (16250023) 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, 406231 + ... + 406270.

It is an arithmetic number, because the mean of its divisors is an integer number (2843757).

Almost surely, 2^16250020 is an apocalyptic number.

16250020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16250020 is an abundant number, since it is smaller than the sum of its proper divisors (17875064).

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

16250020 is a wasteful number, since it uses less digits than its factorization.

16250020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812510 (or 812508 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 16250020 is about 4031.1313548432. The cubic root of 16250020 is about 253.2899548688.

Adding to 16250020 its reverse (2005261), we get a palindrome (18255281).

The spelling of 16250020 in words is "sixteen million, two hundred fifty thousand, twenty".