1252125553 has 16 divisors (see below), whose sum is σ = 1457280000. Its totient is φ = 1053592272.

The previous prime is 1252125533. The next prime is 1252125559. The reversal of 1252125553 is 3555212521.

It is a cyclic number.

It is not a de Polignac number, because 1252125553 - 2²⁵ = 1218571121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1252125559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 377898 + ... + 381196.

It is an arithmetic number, because the mean of its divisors is an integer number (91080000).

Almost surely, 2^1252125553 is an apocalyptic number.

It is an amenable number.

1252125553 is a deficient number, since it is larger than the sum of its proper divisors (205154447).

1252125553 is an equidigital number, since it uses as much as digits as its factorization.

1252125553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4284.

The product of its digits is 15000, while the sum is 31.

The square root of 1252125553 is about 35385.3861502174. The cubic root of 1252125553 is about 1077.8275812718.

The spelling of 1252125553 in words is "one billion, two hundred fifty-two million, one hundred twenty-five thousand, five hundred fifty-three".