106649425 has 6 divisors (see below), whose sum is σ = 132245318. Its totient is φ = 85319520.

The previous prime is 106649401. The next prime is 106649441. The reversal of 106649425 is 524946601.

It can be written as a sum of positive squares in 3 ways, for example, as 14930496 + 91718929 = 3864^2 + 9577^2 .

It is not a de Polignac number, because 106649425 - 2⁷ = 106649297 is a prime.

It is a super-2 number, since 2×106649425² = 22748199705661250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2132964 + ... + 2133013.

Almost surely, 2^106649425 is an apocalyptic number.

It is an amenable number.

106649425 is a deficient number, since it is larger than the sum of its proper divisors (25595893).

106649425 is an equidigital number, since it uses as much as digits as its factorization.

106649425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4265987 (or 4265982 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 106649425 is about 10327.1208475548. The cubic root of 106649425 is about 474.2268864015.

The spelling of 106649425 in words is "one hundred six million, six hundred forty-nine thousand, four hundred twenty-five".