1553157064225 has 12 divisors (see below), whose sum is σ = 2074062049276. Its totient is φ = 1146946754880.

The previous prime is 1553157064223. The next prime is 1553157064229. The reversal of 1553157064225 is 5224607513551.

It can be written as a sum of positive squares in 6 ways, for example, as 116939377296 + 1436217686929 = 341964^2 + 1198423^2 .

It is not a de Polignac number, because 1553157064225 - 2¹ = 1553157064223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1553157064223) 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 11 ways as a sum of consecutive naturals, for example, 2389472082 + ... + 2389472731.

Almost surely, 2^{1553157064225} is an apocalyptic number.

It is an amenable number.

1553157064225 is a deficient number, since it is larger than the sum of its proper divisors (520904985051).

1553157064225 is a wasteful number, since it uses less digits than its factorization.

1553157064225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4778944836 (or 4778944831 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 46.

The spelling of 1553157064225 in words is "one trillion, five hundred fifty-three billion, one hundred fifty-seven million, sixty-four thousand, two hundred twenty-five".