2687397425 has 12 divisors (see below), whose sum is σ = 3344769180. Its totient is φ = 2141920320.

The previous prime is 2687397389. The next prime is 2687397457. The reversal of 2687397425 is 5247937862.

It can be written as a sum of positive squares in 6 ways, for example, as 132802576 + 2554594849 = 11524^2 + 50543^2 .

It is not a de Polignac number, because 2687397425 - 2⁸ = 2687397169 is a prime.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 193082 + ... + 206531.

It is an arithmetic number, because the mean of its divisors is an integer number (278730765).

Almost surely, 2^2687397425 is an apocalyptic number.

2687397425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2687397425 is a deficient number, since it is larger than the sum of its proper divisors (657371755).

2687397425 is a wasteful number, since it uses less digits than its factorization.

2687397425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399892 (or 399887 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 53.

The square root of 2687397425 is about 51840.1140527295. The cubic root of 2687397425 is about 1390.3067530295.

The spelling of 2687397425 in words is "two billion, six hundred eighty-seven million, three hundred ninety-seven thousand, four hundred twenty-five".