4015995960025 has 81 divisors (see below), whose sum is σ = 5989006543167. Its totient is φ = 2663549834400.

The previous prime is 4015995960001. The next prime is 4015995960049. The reversal of 4015995960025 is 5200695995104.

The square root of 4015995960025 is 2003995.

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

It is an interprime number because it is at equal distance from previous prime (4015995960001) and next prime (4015995960049).

It can be written as a sum of positive squares in only one way, i.e., 1445758545609 + 2570237414416 = 1202397^2 + 1603196^2 .

It is not a de Polignac number, because 4015995960025 - 2¹³ = 4015995951833 is a prime.

It is a super-2 number, since 2×4015995960025² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 2174333652 + ... + 2174335498.

Almost surely, 2^{4015995960025} is an apocalyptic number.

4015995960025 is the 2003995-th square number.

4015995960025 is the 1001998-th centered octagonal number.

It is an amenable number.

4015995960025 is a deficient number, since it is larger than the sum of its proper divisors (1973010583142).

4015995960025 is an frugal number, since it uses more digits than its factorization.

4015995960025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3780 (or 1890 counting only the distinct ones).

The product of its (nonzero) digits is 4374000, while the sum is 55.

The spelling of 4015995960025 in words is "four trillion, fifteen billion, nine hundred ninety-five million, nine hundred sixty thousand, twenty-five".