6402725 has 12 divisors (see below), whose sum is σ = 9073824. Its totient is φ = 4390320.

The previous prime is 6402719. The next prime is 6402731. The reversal of 6402725 is 5272046.

It is an interprime number because it is at equal distance from previous prime (6402719) and next prime (6402731).

It is not a de Polignac number, because 6402725 - 2⁶ = 6402661 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6402694 and 6402703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18119 + ... + 18468.

It is an arithmetic number, because the mean of its divisors is an integer number (756152).

Almost surely, 2^6402725 is an apocalyptic number.

It is an amenable number.

6402725 is a deficient number, since it is larger than the sum of its proper divisors (2671099).

6402725 is a wasteful number, since it uses less digits than its factorization.

6402725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36604 (or 36599 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 6402725 is about 2530.3606462321. The cubic root of 6402725 is about 185.6899002921.

The spelling of 6402725 in words is "six million, four hundred two thousand, seven hundred twenty-five".