1550855073 has 24 divisors (see below), whose sum is σ = 2262419424. Its totient is φ = 941665920.

The previous prime is 1550855057. The next prime is 1550855093. The reversal of 1550855073 is 3705580551.

It is not a de Polignac number, because 1550855073 - 2⁴ = 1550855057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1550855093) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33190 + ... + 64832.

It is an arithmetic number, because the mean of its divisors is an integer number (94267476).

Almost surely, 2^1550855073 is an apocalyptic number.

It is an amenable number.

1550855073 is a deficient number, since it is larger than the sum of its proper divisors (711564351).

1550855073 is a wasteful number, since it uses less digits than its factorization.

1550855073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31725 (or 31694 counting only the distinct ones).

The product of its (nonzero) digits is 105000, while the sum is 39.

The square root of 1550855073 is about 39380.8973107521. The cubic root of 1550855073 is about 1157.5072991748.

The spelling of 1550855073 in words is "one billion, five hundred fifty million, eight hundred fifty-five thousand, seventy-three".