3650521725 has 72 divisors (see below), whose sum is σ = 6740997120. Its totient is φ = 1887442560.

The previous prime is 3650521709. The next prime is 3650521739. The reversal of 3650521725 is 5271250563.

3650521725 is a `hidden beast` number, since 3 + 65 + 0 + 521 + 72 + 5 = 666.

It is not a de Polignac number, because 3650521725 - 2⁴ = 3650521709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3650521725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1151092 + ... + 1154258.

It is an arithmetic number, because the mean of its divisors is an integer number (93624960).

Almost surely, 2^3650521725 is an apocalyptic number.

It is an amenable number.

3650521725 is a deficient number, since it is larger than the sum of its proper divisors (3090475395).

3650521725 is a wasteful number, since it uses less digits than its factorization.

3650521725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3339 (or 3331 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The square root of 3650521725 is about 60419.5475405104. The cubic root of 3650521725 is about 1539.7550806603.

The spelling of 3650521725 in words is "three billion, six hundred fifty million, five hundred twenty-one thousand, seven hundred twenty-five".