2505400352515 has 16 divisors (see below), whose sum is σ = 3034158240960. Its totient is φ = 1985869560960.

The previous prime is 2505400352473. The next prime is 2505400352549. The reversal of 2505400352515 is 5152530045052.

It is not a de Polignac number, because 2505400352515 - 2²¹ = 2505398255363 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25679125 + ... + 25776505.

It is an arithmetic number, because the mean of its divisors is an integer number (189634890060).

Almost surely, 2^{2505400352515} is an apocalyptic number.

2505400352515 is a deficient number, since it is larger than the sum of its proper divisors (528757888445).

2505400352515 is a wasteful number, since it uses less digits than its factorization.

2505400352515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144702.

The product of its (nonzero) digits is 150000, while the sum is 37.

Adding to 2505400352515 its reverse (5152530045052), we get a palindrome (7657930397567).

The spelling of 2505400352515 in words is "two trillion, five hundred five billion, four hundred million, three hundred fifty-two thousand, five hundred fifteen".