22501933 has 2 divisors, whose sum is σ = 22501934. Its totient is φ = 22501932.

The previous prime is 22501903. The next prime is 22501961. The reversal of 22501933 is 33910522.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22108804 + 393129 = 4702^2 + 627^2 .

It is a cyclic number.

It is not a de Polignac number, because 22501933 - 2¹³ = 22493741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22501898 and 22501907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22501903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11250966 + 11250967.

It is an arithmetic number, because the mean of its divisors is an integer number (11250967).

Almost surely, 2^22501933 is an apocalyptic number.

It is an amenable number.

22501933 is a deficient number, since it is larger than the sum of its proper divisors (1).

22501933 is an equidigital number, since it uses as much as digits as its factorization.

22501933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 22501933 is about 4743.6202419671. The cubic root of 22501933 is about 282.3188929779.

It can be divided in two parts, 2 and 2501933, that multiplied together give a triangular number (5003866 = T₃₁₆₃).

The spelling of 22501933 in words is "twenty-two million, five hundred one thousand, nine hundred thirty-three".