2195526387 has 32 divisors (see below), whose sum is σ = 3321810432. Its totient is φ = 1282051584.

The previous prime is 2195526383. The next prime is 2195526401. The reversal of 2195526387 is 7836255912.

2195526387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2195526387 - 2² = 2195526383 is a prime.

It is a super-2 number, since 2×2195526387² = 9640672232026547538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2195526383) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18108 + ... + 68694.

It is an arithmetic number, because the mean of its divisors is an integer number (103806576).

Almost surely, 2^2195526387 is an apocalyptic number.

2195526387 is a deficient number, since it is larger than the sum of its proper divisors (1126284045).

2195526387 is a wasteful number, since it uses less digits than its factorization.

2195526387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50667.

The product of its digits is 907200, while the sum is 48.

The square root of 2195526387 is about 46856.4444553788. Note that the first 4 decimals coincide. The cubic root of 2195526387 is about 1299.7092815399.

The spelling of 2195526387 in words is "two billion, one hundred ninety-five million, five hundred twenty-six thousand, three hundred eighty-seven".