2515400623 has 2 divisors, whose sum is σ = 2515400624. Its totient is φ = 2515400622.

The previous prime is 2515400603. The next prime is 2515400647. The reversal of 2515400623 is 3260045152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2515400623 - 2¹⁷ = 2515269551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2515400591 and 2515400600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2515400603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1257700311 + 1257700312.

It is an arithmetic number, because the mean of its divisors is an integer number (1257700312).

Almost surely, 2^2515400623 is an apocalyptic number.

2515400623 is a deficient number, since it is larger than the sum of its proper divisors (1).

2515400623 is an equidigital number, since it uses as much as digits as its factorization.

2515400623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2515400623 is about 50153.7697785520. The cubic root of 2515400623 is about 1359.9900199311.

Adding to 2515400623 its reverse (3260045152), we get a palindrome (5775445775).

The spelling of 2515400623 in words is "two billion, five hundred fifteen million, four hundred thousand, six hundred twenty-three".