920005550 has 12 divisors (see below), whose sum is σ = 1711210416. Its totient is φ = 368002200.

The previous prime is 920005547. The next prime is 920005561. The reversal of 920005550 is 55500029.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9200006 + ... + 9200105.

It is an arithmetic number, because the mean of its divisors is an integer number (142600868).

Almost surely, 2^920005550 is an apocalyptic number.

920005550 is a deficient number, since it is larger than the sum of its proper divisors (791204866).

920005550 is a wasteful number, since it uses less digits than its factorization.

920005550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18400123 (or 18400118 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 920005550 is about 30331.5932651089. The cubic root of 920005550 is about 972.5907819642.

Adding to 920005550 its reverse (55500029), we get a palindrome (975505579).

The spelling of 920005550 in words is "nine hundred twenty million, five thousand, five hundred fifty".