7540516001 has 4 divisors (see below), whose sum is σ = 7540813332. Its totient is φ = 7540218672.

The previous prime is 7540515989. The next prime is 7540516013. The reversal of 7540516001 is 1006150457.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (7540515989) and next prime (7540516013).

It can be written as a sum of positive squares in 2 ways, for example, as 3696640000 + 3843876001 = 60800^2 + 61999^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7540516001 is a prime.

It is a super-2 number, since 2×7540516001² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7540516051) 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, 106670 + ... + 162663.

It is an arithmetic number, because the mean of its divisors is an integer number (1885203333).

Almost surely, 2^7540516001 is an apocalyptic number.

It is an amenable number.

7540516001 is a deficient number, since it is larger than the sum of its proper divisors (297331).

7540516001 is a wasteful number, since it uses less digits than its factorization.

7540516001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297330.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 7540516001 is about 86836.1445539817. The cubic root of 7540516001 is about 1960.9522653840.

Adding to 7540516001 its reverse (1006150457), we get a palindrome (8546666458).

The spelling of 7540516001 in words is "seven billion, five hundred forty million, five hundred sixteen thousand, one".