2515210345 has 8 divisors (see below), whose sum is σ = 3025781640. Its totient is φ = 2007148800.

The previous prime is 2515210331. The next prime is 2515210433. The reversal of 2515210345 is 5430125152.

It can be written as a sum of positive squares in 4 ways, for example, as 1328821209 + 1186389136 = 36453^2 + 34444^2 .

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

It is not a de Polignac number, because 2515210345 - 2⁹ = 2515209833 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 625230 + ... + 629239.

It is an arithmetic number, because the mean of its divisors is an integer number (378222705).

Almost surely, 2^2515210345 is an apocalyptic number.

It is an amenable number.

2515210345 is a deficient number, since it is larger than the sum of its proper divisors (510571295).

2515210345 is a wasteful number, since it uses less digits than its factorization.

2515210345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254875.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 2515210345 is about 50151.8727965367. The cubic root of 2515210345 is about 1359.9557268243.

Adding to 2515210345 its reverse (5430125152), we get a palindrome (7945335497).

It can be divided in two parts, 25 and 15210345, that added together give a triangular number (15210370 = T₅₅₁₅).

The spelling of 2515210345 in words is "two billion, five hundred fifteen million, two hundred ten thousand, three hundred forty-five".