2391567825 has 12 divisors (see below), whose sum is σ = 3954058928. Its totient is φ = 1275502800.

The previous prime is 2391567823. The next prime is 2391567889. The reversal of 2391567825 is 5287651932.

2391567825 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2391567825 - 2¹ = 2391567823 is a prime.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2391567823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15943711 + ... + 15943860.

Almost surely, 2^2391567825 is an apocalyptic number.

2391567825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2391567825 is a deficient number, since it is larger than the sum of its proper divisors (1562491103).

2391567825 is a wasteful number, since it uses less digits than its factorization.

2391567825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31887584 (or 31887579 counting only the distinct ones).

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

The square root of 2391567825 is about 48903.6586054663. The cubic root of 2391567825 is about 1337.2960669653.

The spelling of 2391567825 in words is "two billion, three hundred ninety-one million, five hundred sixty-seven thousand, eight hundred twenty-five".