1550272065 has 32 divisors (see below), whose sum is σ = 2553753216. Its totient is φ = 802483200.

The previous prime is 1550272057. The next prime is 1550272067. The reversal of 1550272065 is 5602720551.

It is not a de Polignac number, because 1550272065 - 2³ = 1550272057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1550272067) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 237090 + ... + 243540.

It is an arithmetic number, because the mean of its divisors is an integer number (79804788).

Almost surely, 2^1550272065 is an apocalyptic number.

1550272065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1550272065 is a deficient number, since it is larger than the sum of its proper divisors (1003481151).

1550272065 is a wasteful number, since it uses less digits than its factorization.

1550272065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6929.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 1550272065 is about 39373.4944474071. The cubic root of 1550272065 is about 1157.3622349867.

The spelling of 1550272065 in words is "one billion, five hundred fifty million, two hundred seventy-two thousand, sixty-five".