1225056590 has 32 divisors (see below), whose sum is σ = 2306477376. Its totient is φ = 467596800.

The previous prime is 1225056571. The next prime is 1225056607. The reversal of 1225056590 is 956505221.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1225056590.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93440 + ... + 105740.

It is an arithmetic number, because the mean of its divisors is an integer number (72077418).

Almost surely, 2^1225056590 is an apocalyptic number.

1225056590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225056590 is a deficient number, since it is larger than the sum of its proper divisors (1081420786).

1225056590 is a wasteful number, since it uses less digits than its factorization.

1225056590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12764.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 1225056590 is about 35000.8084192351. The cubic root of 1225056590 is about 1070.0039566628.

The spelling of 1225056590 in words is "one billion, two hundred twenty-five million, fifty-six thousand, five hundred ninety".