2515455555 has 16 divisors (see below), whose sum is σ = 4025533344. Its totient is φ = 1341308160.

The previous prime is 2515455539. The next prime is 2515455577. The reversal of 2515455555 is 5555545152.

It is not a de Polignac number, because 2515455555 - 2⁴ = 2515455539 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, 78117 + ... + 105513.

It is an arithmetic number, because the mean of its divisors is an integer number (251595834).

Almost surely, 2^2515455555 is an apocalyptic number.

2515455555 is a deficient number, since it is larger than the sum of its proper divisors (1510077789).

2515455555 is a wasteful number, since it uses less digits than its factorization.

2515455555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33526.

The product of its digits is 625000, while the sum is 42.

The square root of 2515455555 is about 50154.3174113655. The cubic root of 2515455555 is about 1359.9999198025. Note that the first 4 decimals are identical.

The spelling of 2515455555 in words is "two billion, five hundred fifteen million, four hundred fifty-five thousand, five hundred fifty-five".