16252401 has 16 divisors (see below), whose sum is σ = 24403968. Its totient is φ = 9531600.

The previous prime is 16252393. The next prime is 16252403. The reversal of 16252401 is 10425261.

It is not a de Polignac number, because 16252401 - 2³ = 16252393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16252403) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6921 + ... + 8966.

It is an arithmetic number, because the mean of its divisors is an integer number (1525248).

Almost surely, 2^16252401 is an apocalyptic number.

16252401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16252401 is a deficient number, since it is larger than the sum of its proper divisors (8151567).

16252401 is a wasteful number, since it uses less digits than its factorization.

16252401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15932.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 16252401 is about 4031.4266705473. The cubic root of 16252401 is about 253.3023251906.

Adding to 16252401 its reverse (10425261), we get a palindrome (26677662).

It can be divided in two parts, 16252 and 401, that added together give a triangular number (16653 = T₁₈₂).

The spelling of 16252401 in words is "sixteen million, two hundred fifty-two thousand, four hundred one".