13770425 has 12 divisors (see below), whose sum is σ = 18080316. Its totient is φ = 10368000.

The previous prime is 13770409. The next prime is 13770437. The reversal of 13770425 is 52407731.

It can be written as a sum of positive squares in 6 ways, for example, as 2019241 + 11751184 = 1421^2 + 3428^2 .

It is not a de Polignac number, because 13770425 - 2⁴ = 13770409 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15776 + ... + 16625.

It is an arithmetic number, because the mean of its divisors is an integer number (1506693).

Almost surely, 2^13770425 is an apocalyptic number.

It is an amenable number.

13770425 is a deficient number, since it is larger than the sum of its proper divisors (4309891).

13770425 is a wasteful number, since it uses less digits than its factorization.

13770425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32428 (or 32423 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 13770425 is about 3710.8523279700. The cubic root of 13770425 is about 239.6895581048.

The spelling of 13770425 in words is "thirteen million, seven hundred seventy thousand, four hundred twenty-five".