22237373925 has 36 divisors (see below), whose sum is σ = 42893429124. Its totient is φ = 10947628800.

The previous prime is 22237373903. The next prime is 22237373947. The reversal of 22237373925 is 52937373222.

22237373925 is a `hidden beast` number, since 2 + 223 + 7 + 37 + 392 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (22237373903) and next prime (22237373947).

It can be written as a sum of positive squares in 6 ways, for example, as 5158543329 + 17078830596 = 71823^2 + 130686^2 .

It is not a de Polignac number, because 22237373925 - 2¹² = 22237369829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3798336 + ... + 3804185.

Almost surely, 2^22237373925 is an apocalyptic number.

22237373925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22237373925 is a deficient number, since it is larger than the sum of its proper divisors (20656055199).

22237373925 is a wasteful number, since it uses less digits than its factorization.

22237373925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7602550 (or 7602542 counting only the distinct ones).

The product of its digits is 952560, while the sum is 45.

The spelling of 22237373925 in words is "twenty-two billion, two hundred thirty-seven million, three hundred seventy-three thousand, nine hundred twenty-five".