8251562401 has 4 divisors (see below), whose sum is σ = 8264084400. Its totient is φ = 8239040404.

The previous prime is 8251562399. The next prime is 8251562413. The reversal of 8251562401 is 1042651528.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 8251562401 - 2¹ = 8251562399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8251562101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6260011 + ... + 6261328.

It is an arithmetic number, because the mean of its divisors is an integer number (2066021100).

Almost surely, 2^8251562401 is an apocalyptic number.

It is an amenable number.

8251562401 is a deficient number, since it is larger than the sum of its proper divisors (12521999).

8251562401 is a wasteful number, since it uses less digits than its factorization.

8251562401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12521998.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 8251562401 is about 90838.1109501953. The cubic root of 8251562401 is about 2020.7475585718.

The spelling of 8251562401 in words is "eight billion, two hundred fifty-one million, five hundred sixty-two thousand, four hundred one".