2515455545 has 16 divisors (see below), whose sum is σ = 3101811408. Its totient is φ = 1956913920.

The previous prime is 2515455539. The next prime is 2515455577. The reversal of 2515455545 is 5455545152.

It can be written as a sum of positive squares in 8 ways, for example, as 5345344 + 2510110201 = 2312^2 + 50101^2 .

It is not a de Polignac number, because 2515455545 - 2⁴ = 2515455529 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 660587 + ... + 664383.

It is an arithmetic number, because the mean of its divisors is an integer number (193863213).

Almost surely, 2^2515455545 is an apocalyptic number.

It is an amenable number.

2515455545 is a deficient number, since it is larger than the sum of its proper divisors (586355863).

2515455545 is a wasteful number, since it uses less digits than its factorization.

2515455545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7420.

The product of its digits is 500000, while the sum is 41.

The square root of 2515455545 is about 50154.3173116732. The cubic root of 2515455545 is about 1359.9999180003. Note that the first 4 decimals are identical.

The spelling of 2515455545 in words is "two billion, five hundred fifteen million, four hundred fifty-five thousand, five hundred forty-five".