3994953525 has 36 divisors (see below), whose sum is σ = 7159407840. Its totient is φ = 2129450400.

The previous prime is 3994953511. The next prime is 3994953563. The reversal of 3994953525 is 5253594993.

It is a happy number.

It is not a de Polignac number, because 3994953525 - 2¹² = 3994949429 is a prime.

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, 522480 + ... + 530070.

It is an arithmetic number, because the mean of its divisors is an integer number (198872440).

Almost surely, 2^3994953525 is an apocalyptic number.

It is an amenable number.

3994953525 is a deficient number, since it is larger than the sum of its proper divisors (3164454315).

3994953525 is a wasteful number, since it uses less digits than its factorization.

3994953525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9946 (or 9938 counting only the distinct ones).

The product of its digits is 6561000, while the sum is 54.

The square root of 3994953525 is about 63205.6447241858. The cubic root of 3994953525 is about 1586.7332060568.

The spelling of 3994953525 in words is "three billion, nine hundred ninety-four million, nine hundred fifty-three thousand, five hundred twenty-five".