22501903 has 2 divisors, whose sum is σ = 22501904. Its totient is φ = 22501902.

The previous prime is 22501879. The next prime is 22501933. The reversal of 22501903 is 30910522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22501903 - 2¹³ = 22493711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22501933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11250951 + 11250952.

It is an arithmetic number, because the mean of its divisors is an integer number (11250952).

Almost surely, 2^22501903 is an apocalyptic number.

22501903 is a deficient number, since it is larger than the sum of its proper divisors (1).

22501903 is an equidigital number, since it uses as much as digits as its factorization.

22501903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 22501903 is about 4743.6170798242. The cubic root of 22501903 is about 282.3187675135.

The spelling of 22501903 in words is "twenty-two million, five hundred one thousand, nine hundred three".