7523942401 has 4 divisors (see below), whose sum is σ = 7535465172. Its totient is φ = 7512419632.

The previous prime is 7523942351. The next prime is 7523942423. The reversal of 7523942401 is 1042493257.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1042493257 = 13 ⋅80191789.

It can be written as a sum of positive squares in 2 ways, for example, as 5095818225 + 2428124176 = 71385^2 + 49276^2 .

It is a cyclic number.

It is not a de Polignac number, because 7523942401 - 2¹¹ = 7523940353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7524942401) 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, 5760406 + ... + 5761711.

It is an arithmetic number, because the mean of its divisors is an integer number (1883866293).

Almost surely, 2^7523942401 is an apocalyptic number.

It is an amenable number.

7523942401 is a deficient number, since it is larger than the sum of its proper divisors (11522771).

7523942401 is a wasteful number, since it uses less digits than its factorization.

7523942401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11522770.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 7523942401 is about 86740.6617509920. The cubic root of 7523942401 is about 1959.5145265245.

The spelling of 7523942401 in words is "seven billion, five hundred twenty-three million, nine hundred forty-two thousand, four hundred one".