201502401505 has 4 divisors (see below), whose sum is σ = 241802881812. Its totient is φ = 161201921200.

The previous prime is 201502401493. The next prime is 201502401521. The reversal of 201502401505 is 505104205102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81137813409 + 120364588096 = 284847^2 + 346936^2 .

It is not a de Polignac number, because 201502401505 - 2⁵ = 201502401473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201502401505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20150240146 + ... + 20150240155.

It is an arithmetic number, because the mean of its divisors is an integer number (60450720453).

Almost surely, 2^201502401505 is an apocalyptic number.

It is an amenable number.

201502401505 is a deficient number, since it is larger than the sum of its proper divisors (40300480307).

201502401505 is an equidigital number, since it uses as much as digits as its factorization.

201502401505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40300480306.

The product of its (nonzero) digits is 2000, while the sum is 25.

Adding to 201502401505 its reverse (505104205102), we get a palindrome (706606606607).

The spelling of 201502401505 in words is "two hundred one billion, five hundred two million, four hundred one thousand, five hundred five".