1225656030 has 16 divisors (see below), whose sum is σ = 2941574544. Its totient is φ = 326841600.

The previous prime is 1225656023. The next prime is 1225656053. The reversal of 1225656030 is 306565221.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 40855201 = 1225656030 / (1 + 2 + 2 + 5 + 6 + 5 + 6 + 0 + 3 + 0).

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, 20427571 + ... + 20427630.

It is an arithmetic number, because the mean of its divisors is an integer number (183848409).

Almost surely, 2^1225656030 is an apocalyptic number.

1225656030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225656030 is an abundant number, since it is smaller than the sum of its proper divisors (1715918514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1225656030 is a wasteful number, since it uses less digits than its factorization.

1225656030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40855211.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 1225656030 is about 35009.3706027401. The cubic root of 1225656030 is about 1070.1784516179.

It can be divided in two parts, 12256 and 56030, that added together give a palindrome (68286).

The spelling of 1225656030 in words is "one billion, two hundred twenty-five million, six hundred fifty-six thousand, thirty".