7258452561 has 48 divisors (see below), whose sum is σ = 11548925440. Its totient is φ = 4375399680.

The previous prime is 7258452511. The next prime is 7258452563. The reversal of 7258452561 is 1652548527.

7258452561 is a `hidden beast` number, since 7 + 2 + 5 + 84 + 5 + 2 + 561 = 666.

It is not a de Polignac number, because 7258452561 - 2⁶ = 7258452497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7258452563) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 377595 + ... + 396351.

Almost surely, 2^7258452561 is an apocalyptic number.

It is an amenable number.

7258452561 is a deficient number, since it is larger than the sum of its proper divisors (4290472879).

7258452561 is a wasteful number, since it uses less digits than its factorization.

7258452561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18886 (or 18883 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The square root of 7258452561 is about 85196.5525182798. The cubic root of 7258452561 is about 1936.1901850002.

The spelling of 7258452561 in words is "seven billion, two hundred fifty-eight million, four hundred fifty-two thousand, five hundred sixty-one".