2115255554 has 16 divisors (see below), whose sum is σ = 3207540600. Its totient is φ = 1046135040.

The previous prime is 2115255533. The next prime is 2115255587. The reversal of 2115255554 is 4555525112.

It can be written as a sum of positive squares in 4 ways, for example, as 1652016025 + 463239529 = 40645^2 + 21523^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57092 + ... + 86544.

Almost surely, 2^2115255554 is an apocalyptic number.

2115255554 is a deficient number, since it is larger than the sum of its proper divisors (1092285046).

2115255554 is a wasteful number, since it uses less digits than its factorization.

2115255554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29845.

The product of its digits is 50000, while the sum is 35.

The square root of 2115255554 is about 45991.9074838172. The cubic root of 2115255554 is about 1283.6726297484.

The spelling of 2115255554 in words is "two billion, one hundred fifteen million, two hundred fifty-five thousand, five hundred fifty-four".