1225553030 has 32 divisors (see below), whose sum is σ = 2378140128. Its totient is φ = 452044800.

The previous prime is 1225553027. The next prime is 1225553053. The reversal of 1225553030 is 303555221.

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 137510 + ... + 146150.

It is an arithmetic number, because the mean of its divisors is an integer number (74316879).

Almost surely, 2^1225553030 is an apocalyptic number.

1225553030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225553030 is a deficient number, since it is larger than the sum of its proper divisors (1152587098).

1225553030 is a wasteful number, since it uses less digits than its factorization.

1225553030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9752.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 1225553030 is about 35007.8995371045. The cubic root of 1225553030 is about 1070.1484727152.

The spelling of 1225553030 in words is "one billion, two hundred twenty-five million, five hundred fifty-three thousand, thirty".