6419725 has 12 divisors (see below), whose sum is σ = 8573236. Its totient is φ = 4740480.

The previous prime is 6419717. The next prime is 6419729. The reversal of 6419725 is 5279146.

It can be written as a sum of positive squares in 6 ways, for example, as 1212201 + 5207524 = 1101^2 + 2282^2 .

It is not a de Polignac number, because 6419725 - 2³ = 6419717 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6419729) 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, 9552 + ... + 10201.

Almost surely, 2^6419725 is an apocalyptic number.

6419725 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6419725 is a deficient number, since it is larger than the sum of its proper divisors (2153511).

6419725 is a wasteful number, since it uses less digits than its factorization.

6419725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19776 (or 19771 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

The square root of 6419725 is about 2533.7176243615. The cubic root of 6419725 is about 185.8540980146.

The spelling of 6419725 in words is "six million, four hundred nineteen thousand, seven hundred twenty-five".