7235912561 has 4 divisors (see below), whose sum is σ = 7255629312. Its totient is φ = 7216195812.

The previous prime is 7235912549. The next prime is 7235912573. The reversal of 7235912561 is 1652195327.

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: 1652195327 = 41 ⋅40297447.

It is an interprime number because it is at equal distance from previous prime (7235912549) and next prime (7235912573).

It is a cyclic number.

It is not a de Polignac number, because 7235912561 - 2¹⁸ = 7235650417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7235912501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9857825 + ... + 9858558.

It is an arithmetic number, because the mean of its divisors is an integer number (1813907328).

Almost surely, 2^7235912561 is an apocalyptic number.

It is an amenable number.

7235912561 is a deficient number, since it is larger than the sum of its proper divisors (19716751).

7235912561 is a wasteful number, since it uses less digits than its factorization.

7235912561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19716750.

The product of its digits is 113400, while the sum is 41.

The square root of 7235912561 is about 85064.1673150334. The cubic root of 7235912561 is about 1934.1839272979.

The spelling of 7235912561 in words is "seven billion, two hundred thirty-five million, nine hundred twelve thousand, five hundred sixty-one".