3915630625 has 15 divisors (see below), whose sum is σ = 4894927653. Its totient is φ = 3131253000.

The previous prime is 3915630581. The next prime is 3915630629. The reversal of 3915630625 is 5260365193.

It is a happy number.

The square root of 3915630625 is 62575.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 306985441 + 3608645184 = 17521^2 + 60072^2 .

It is not a de Polignac number, because 3915630625 - 2¹³ = 3915622433 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3915630629) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1563124 + ... + 1565626.

Almost surely, 2^3915630625 is an apocalyptic number.

3915630625 is the 62575-th square number.

3915630625 is the 31288-th centered octagonal number.

It is an amenable number.

3915630625 is a deficient number, since it is larger than the sum of its proper divisors (979297028).

3915630625 is an frugal number, since it uses more digits than its factorization.

3915630625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5026 (or 2508 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 40.

The cubic root of 3915630625 is about 1576.1609815686.

The spelling of 3915630625 in words is "three billion, nine hundred fifteen million, six hundred thirty thousand, six hundred twenty-five".