2656425 has 12 divisors (see below), whose sum is σ = 4392080.
Its totient is φ = 1416720.
The previous prime is 2656417. The next prime is 2656427. The reversal of 2656425 is 5246562.
It is not a de Polignac number, because 2656425 - 23 = 2656417 is a prime.
It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.
It is a Curzon number.
2656425 is a lucky number.
It is a junction number, because it is equal to n+sod(n) for n = 2656392 and 2656401.
It is not an unprimeable number, because it can be changed into a prime (2656427) 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, 17635 + ... + 17784.
22656425 is an apocalyptic number.
2656425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
2656425 is a deficient number, since it is larger than the sum of its proper divisors (1735655).
2656425 is a wasteful number, since it uses less digits than its factorization.
2656425 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 35432 (or 35427 counting only the distinct ones).
The product of its digits is 14400, while the sum is 30.
The square root of 2656425 is about 1629.8542879656.
The cubic root of 2656425 is about 138.4944977331.
It can be divided in two parts, 2656 and 425, that added together give a triangular number (3081 = T78).
The spelling of 2656425 in words is "two million, six hundred fifty-six thousand, four hundred twenty-five".