1550252255 has 4 divisors (see below), whose sum is σ = 1860302712. Its totient is φ = 1240201800.

The previous prime is 1550252243. The next prime is 1550252257. The reversal of 1550252255 is 5522520551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5522520551 = 263 ⋅20998177.

It is not a de Polignac number, because 1550252255 - 2²⁰ = 1549203679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1550252257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155025221 + ... + 155025230.

It is an arithmetic number, because the mean of its divisors is an integer number (465075678).

Almost surely, 2^1550252255 is an apocalyptic number.

1550252255 is a deficient number, since it is larger than the sum of its proper divisors (310050457).

1550252255 is an equidigital number, since it uses as much as digits as its factorization.

1550252255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310050456.

The product of its (nonzero) digits is 25000, while the sum is 32.

The square root of 1550252255 is about 39373.2428814290. The cubic root of 1550252255 is about 1157.3573052190.

The spelling of 1550252255 in words is "one billion, five hundred fifty million, two hundred fifty-two thousand, two hundred fifty-five".