16225901 has 4 divisors (see below), whose sum is σ = 16353792. Its totient is φ = 16098012.

The previous prime is 16225861. The next prime is 16225903. The reversal of 16225901 is 10952261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-16225901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16225903) 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, 63755 + ... + 64008.

It is an arithmetic number, because the mean of its divisors is an integer number (4088448).

Almost surely, 2^16225901 is an apocalyptic number.

It is an amenable number.

16225901 is a deficient number, since it is larger than the sum of its proper divisors (127891).

16225901 is a wasteful number, since it uses less digits than its factorization.

16225901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127890.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 16225901 is about 4028.1386520327. The cubic root of 16225901 is about 253.1645780922.

The spelling of 16225901 in words is "sixteen million, two hundred twenty-five thousand, nine hundred one".