3729517425 has 60 divisors (see below), whose sum is σ = 6951353200. Its totient is φ = 1976698080.

The previous prime is 3729517417. The next prime is 3729517439. The reversal of 3729517425 is 5247159273.

It is a happy number.

3729517425 is a `hidden beast` number, since 372 + 95 + 174 + 25 = 666.

It is not a de Polignac number, because 3729517425 - 2³ = 3729517417 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 an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 324426 + ... + 335724.

Almost surely, 2^3729517425 is an apocalyptic number.

It is an amenable number.

3729517425 is a deficient number, since it is larger than the sum of its proper divisors (3221835775).

3729517425 is a wasteful number, since it uses less digits than its factorization.

3729517425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11484 (or 11470 counting only the distinct ones).

The product of its digits is 529200, while the sum is 45.

The square root of 3729517425 is about 61069.7750528033. The cubic root of 3729517425 is about 1550.7824596033.

The spelling of 3729517425 in words is "three billion, seven hundred twenty-nine million, five hundred seventeen thousand, four hundred twenty-five".