1553225275 has 18 divisors (see below), whose sum is σ = 2240449980. Its totient is φ = 1065067920.

The previous prime is 1553225237. The next prime is 1553225287. The reversal of 1553225275 is 5725223551.

It is not a de Polignac number, because 1553225275 - 2²⁵ = 1519670843 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 632745 + ... + 635194.

Almost surely, 2^1553225275 is an apocalyptic number.

1553225275 is a deficient number, since it is larger than the sum of its proper divisors (687224705).

1553225275 is a wasteful number, since it uses less digits than its factorization.

1553225275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267963 (or 1267951 counting only the distinct ones).

The product of its digits is 105000, while the sum is 37.

The square root of 1553225275 is about 39410.9791174997. The cubic root of 1553225275 is about 1158.0966793362.

The spelling of 1553225275 in words is "one billion, five hundred fifty-three million, two hundred twenty-five thousand, two hundred seventy-five".