1225005510 has 16 divisors (see below), whose sum is σ = 2940013296. Its totient is φ = 326668128.

The previous prime is 1225005493. The next prime is 1225005527. The reversal of 1225005510 is 155005221.

It is an interprime number because it is at equal distance from previous prime (1225005493) and next prime (1225005527).

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 20416729 + ... + 20416788.

It is an arithmetic number, because the mean of its divisors is an integer number (183750831).

Almost surely, 2^1225005510 is an apocalyptic number.

1225005510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225005510 is an abundant number, since it is smaller than the sum of its proper divisors (1715007786).

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

1225005510 is a wasteful number, since it uses less digits than its factorization.

1225005510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40833527.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 1225005510 is about 35000.0787141972. The cubic root of 1225005510 is about 1069.9890848160.

The spelling of 1225005510 in words is "one billion, two hundred twenty-five million, five thousand, five hundred ten".