8551601025 has 48 divisors (see below), whose sum is σ = 15444749568. Its totient is φ = 4140648000.

The previous prime is 8551601021. The next prime is 8551601029. The reversal of 8551601025 is 5201061558.

It is an interprime number because it is at equal distance from previous prime (8551601021) and next prime (8551601029).

It is not a de Polignac number, because 8551601025 - 2² = 8551601021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (8551601021) 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 47 ways as a sum of consecutive naturals, for example, 642690 + ... + 655860.

It is an arithmetic number, because the mean of its divisors is an integer number (321765616).

Almost surely, 2^8551601025 is an apocalyptic number.

It is an amenable number.

8551601025 is a deficient number, since it is larger than the sum of its proper divisors (6893148543).

8551601025 is a wasteful number, since it uses less digits than its factorization.

8551601025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13982 (or 13977 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 33.

The square root of 8551601025 is about 92474.8669909830. The cubic root of 8551601025 is about 2044.9489787866.

The spelling of 8551601025 in words is "eight billion, five hundred fifty-one million, six hundred one thousand, twenty-five".