920651025 has 48 divisors (see below), whose sum is σ = 1748046848. Its totient is φ = 418824000.

The previous prime is 920650981. The next prime is 920651041. The reversal of 920651025 is 520156029.

It is a happy number.

It is not a de Polignac number, because 920651025 - 2⁹ = 920650513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 920650983 and 920651001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 106620 + ... + 114930.

Almost surely, 2^920651025 is an apocalyptic number.

It is an amenable number.

920651025 is a deficient number, since it is larger than the sum of its proper divisors (827395823).

920651025 is a wasteful number, since it uses less digits than its factorization.

920651025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8542 (or 8537 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 920651025 is about 30342.2317076381. The cubic root of 920651025 is about 972.8181850398.

The spelling of 920651025 in words is "nine hundred twenty million, six hundred fifty-one thousand, twenty-five".