920385553 has 2 divisors, whose sum is σ = 920385554. Its totient is φ = 920385552.

The previous prime is 920385539. The next prime is 920385607. The reversal of 920385553 is 355583029.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 920333569 + 51984 = 30337^2 + 228^2 .

It is a cyclic number.

It is not a de Polignac number, because 920385553 - 2²¹ = 918288401 is a prime.

It is a super-2 number, since 2×920385553² = 1694219132342231618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (920385353) 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 as a sum of consecutive naturals, namely, 460192776 + 460192777.

It is an arithmetic number, because the mean of its divisors is an integer number (460192777).

Almost surely, 2^920385553 is an apocalyptic number.

It is an amenable number.

920385553 is a deficient number, since it is larger than the sum of its proper divisors (1).

920385553 is an equidigital number, since it uses as much as digits as its factorization.

920385553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 920385553 is about 30337.8567634564. The cubic root of 920385553 is about 972.7246712077.

The spelling of 920385553 in words is "nine hundred twenty million, three hundred eighty-five thousand, five hundred fifty-three".