1225652057 has 32 divisors (see below), whose sum is σ = 1504665600. Its totient is φ = 975094848.

The previous prime is 1225652039. The next prime is 1225652059. The reversal of 1225652057 is 7502565221.

It is not a de Polignac number, because 1225652057 - 2¹⁶ = 1225586521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1225652059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1649228 + ... + 1649970.

It is an arithmetic number, because the mean of its divisors is an integer number (47020800).

Almost surely, 2^1225652057 is an apocalyptic number.

It is an amenable number.

1225652057 is a deficient number, since it is larger than the sum of its proper divisors (279013543).

1225652057 is a wasteful number, since it uses less digits than its factorization.

1225652057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 1225652057 is about 35009.3138607428. The cubic root of 1225652057 is about 1070.1772952783.

The spelling of 1225652057 in words is "one billion, two hundred twenty-five million, six hundred fifty-two thousand, fifty-seven".