1390055425 has 24 divisors (see below), whose sum is σ = 1899021312. Its totient is φ = 1000920000.

The previous prime is 1390055413. The next prime is 1390055449. The reversal of 1390055425 is 5245500931.

It is not a de Polignac number, because 1390055425 - 2¹¹ = 1390053377 is a prime.

It is a Duffinian 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 23 ways as a sum of consecutive naturals, for example, 2752 + ... + 52798.

It is an arithmetic number, because the mean of its divisors is an integer number (79125888).

Almost surely, 2^1390055425 is an apocalyptic number.

It is an amenable number.

1390055425 is a deficient number, since it is larger than the sum of its proper divisors (508965887).

1390055425 is a wasteful number, since it uses less digits than its factorization.

1390055425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50169 (or 50164 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 1390055425 is about 37283.4470643475. The cubic root of 1390055425 is about 1116.0338631422.

The spelling of 1390055425 in words is "one billion, three hundred ninety million, fifty-five thousand, four hundred twenty-five".