4125649954 has 4 divisors (see below), whose sum is σ = 6188474934. Its totient is φ = 2062824976.

The previous prime is 4125649937. The next prime is 4125650003. The reversal of 4125649954 is 4599465214.

It is a happy number.

4125649954 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4114581025 + 11068929 = 64145^2 + 3327^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 4125649898 and 4125649907.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1031412487 + ... + 1031412490.

Almost surely, 2^4125649954 is an apocalyptic number.

4125649954 is a deficient number, since it is larger than the sum of its proper divisors (2062824980).

4125649954 is a wasteful number, since it uses less digits than its factorization.

4125649954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062824979.

The product of its digits is 1555200, while the sum is 49.

The square root of 4125649954 is about 64231.2225790542. Note that the first 3 decimals coincide. The cubic root of 4125649954 is about 1603.8513928881.

The spelling of 4125649954 in words is "four billion, one hundred twenty-five million, six hundred forty-nine thousand, nine hundred fifty-four".