3546449725 has 72 divisors (see below), whose sum is σ = 5638284960. Its totient is φ = 2192158080.

The previous prime is 3546449723. The next prime is 3546449729. The reversal of 3546449725 is 5279446453.

It is not a de Polignac number, because 3546449725 - 2¹ = 3546449723 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3546449723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 682186 + ... + 687364.

Almost surely, 2^3546449725 is an apocalyptic number.

3546449725 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3546449725 is a deficient number, since it is larger than the sum of its proper divisors (2091835235).

3546449725 is a wasteful number, since it uses less digits than its factorization.

3546449725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5259 (or 5247 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 49.

The square root of 3546449725 is about 59552.0757404811. The cubic root of 3546449725 is about 1524.9815961230.

The spelling of 3546449725 in words is "three billion, five hundred forty-six million, four hundred forty-nine thousand, seven hundred twenty-five".