1225256006 has 16 divisors (see below), whose sum is σ = 1979846064. Its totient is φ = 565335264.

The previous prime is 1225255987. The next prime is 1225256041. The reversal of 1225256006 is 6006525221.

It is a self number, because there is not a number n which added to its sum of digits gives 1225256006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144521 + ... + 152763.

It is an arithmetic number, because the mean of its divisors is an integer number (123740379).

Almost surely, 2^1225256006 is an apocalyptic number.

1225256006 is a deficient number, since it is larger than the sum of its proper divisors (754590058).

1225256006 is a wasteful number, since it uses less digits than its factorization.

1225256006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13975.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1225256006 is about 35003.6570375154. The cubic root of 1225256006 is about 1070.0620123026.

The spelling of 1225256006 in words is "one billion, two hundred twenty-five million, two hundred fifty-six thousand, six".