2515665253 has 8 divisors (see below), whose sum is σ = 2664204480. Its totient is φ = 2367188160.

The previous prime is 2515665247. The next prime is 2515665263. The reversal of 2515665253 is 3525665152.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2515665253 - 2⁹ = 2515664741 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 (2515665203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87358 + ... + 112528.

It is an arithmetic number, because the mean of its divisors is an integer number (333025560).

Almost surely, 2^2515665253 is an apocalyptic number.

It is an amenable number.

2515665253 is a deficient number, since it is larger than the sum of its proper divisors (148539227).

2515665253 is a wasteful number, since it uses less digits than its factorization.

2515665253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31067.

The product of its digits is 270000, while the sum is 40.

The square root of 2515665253 is about 50156.4078957016. The cubic root of 2515665253 is about 1360.0377103514.

It can be divided in two parts, 25156 and 65253, that added together give a palindrome (90409).

The spelling of 2515665253 in words is "two billion, five hundred fifteen million, six hundred sixty-five thousand, two hundred fifty-three".