22493951 has 2 divisors, whose sum is σ = 22493952. Its totient is φ = 22493950.

The previous prime is 22493923. The next prime is 22493959. The reversal of 22493951 is 15939422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22493951 - 2¹⁰ = 22492927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22493959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11246975 + 11246976.

It is an arithmetic number, because the mean of its divisors is an integer number (11246976).

Almost surely, 2^22493951 is an apocalyptic number.

22493951 is a deficient number, since it is larger than the sum of its proper divisors (1).

22493951 is an equidigital number, since it uses as much as digits as its factorization.

22493951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 35.

The square root of 22493951 is about 4742.7788268061. The cubic root of 22493951 is about 282.2855071659.

The spelling of 22493951 in words is "twenty-two million, four hundred ninety-three thousand, nine hundred fifty-one".