7557245441 has 4 divisors (see below), whose sum is σ = 7801027584. Its totient is φ = 7313463300.

The previous prime is 7557245431. The next prime is 7557245473. The reversal of 7557245441 is 1445427557.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1445427557 = 7 ⋅206489651.

It is a cyclic number.

It is not a de Polignac number, because 7557245441 - 2²² = 7553051137 is a prime.

It is a super-2 number, since 2×7557245441² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7557245392 and 7557245401.

It is not an unprimeable number, because it can be changed into a prime (7557245411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121891025 + ... + 121891086.

It is an arithmetic number, because the mean of its divisors is an integer number (1950256896).

Almost surely, 2^7557245441 is an apocalyptic number.

It is an amenable number.

7557245441 is a deficient number, since it is larger than the sum of its proper divisors (243782143).

7557245441 is a wasteful number, since it uses less digits than its factorization.

7557245441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243782142.

The product of its digits is 784000, while the sum is 44.

The square root of 7557245441 is about 86932.4188148472. The cubic root of 7557245441 is about 1962.4013882375.

The spelling of 7557245441 in words is "seven billion, five hundred fifty-seven million, two hundred forty-five thousand, four hundred forty-one".