920545557 has 8 divisors (see below), whose sum is σ = 1227734976. Its totient is φ = 613526592.

The previous prime is 920545541. The next prime is 920545567. The reversal of 920545557 is 755545029.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 920545557 - 2⁴ = 920545541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920545517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29428 + ... + 52029.

It is an arithmetic number, because the mean of its divisors is an integer number (153466872).

Almost surely, 2^920545557 is an apocalyptic number.

It is an amenable number.

920545557 is a deficient number, since it is larger than the sum of its proper divisors (307189419).

920545557 is a wasteful number, since it uses less digits than its factorization.

920545557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85227.

The product of its (nonzero) digits is 315000, while the sum is 42.

The square root of 920545557 is about 30340.4936841838. The cubic root of 920545557 is about 972.7810355648.

The spelling of 920545557 in words is "nine hundred twenty million, five hundred forty-five thousand, five hundred fifty-seven".