4006522545251 has 4 divisors (see below), whose sum is σ = 4006674155904. Its totient is φ = 4006370934600.

The previous prime is 4006522545241. The next prime is 4006522545271. The reversal of 4006522545251 is 1525452256004.

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

It is a cyclic number.

It is not a de Polignac number, because 4006522545251 - 2¹⁸ = 4006522283107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4006522545199 and 4006522545208.

It is not an unprimeable number, because it can be changed into a prime (4006522545211) 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, 75765680 + ... + 75818541.

It is an arithmetic number, because the mean of its divisors is an integer number (1001668538976).

Almost surely, 2^{4006522545251} is an apocalyptic number.

4006522545251 is a deficient number, since it is larger than the sum of its proper divisors (151610653).

4006522545251 is a wasteful number, since it uses less digits than its factorization.

4006522545251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151610652.

The product of its (nonzero) digits is 480000, while the sum is 41.

The spelling of 4006522545251 in words is "four trillion, six billion, five hundred twenty-two million, five hundred forty-five thousand, two hundred fifty-one".