2515152540 has 24 divisors (see below), whose sum is σ = 7042427280. Its totient is φ = 670707328.

The previous prime is 2515152529. The next prime is 2515152583. The reversal of 2515152540 is 452515152.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2515152498 and 2515152507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20959545 + ... + 20959664.

It is an arithmetic number, because the mean of its divisors is an integer number (293434470).

Almost surely, 2^2515152540 is an apocalyptic number.

2515152540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2515152540 is an abundant number, since it is smaller than the sum of its proper divisors (4527274740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2515152540 is a wasteful number, since it uses less digits than its factorization.

2515152540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41919221 (or 41919219 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 2515152540 is about 50151.2964937099. The cubic root of 2515152540 is about 1359.9453084985.

Adding to 2515152540 its reverse (452515152), we get a palindrome (2967667692).

The spelling of 2515152540 in words is "two billion, five hundred fifteen million, one hundred fifty-two thousand, five hundred forty".