2721652505 has 16 divisors (see below), whose sum is σ = 3836960064. Its totient is φ = 1827122880.

The previous prime is 2721652469. The next prime is 2721652517. The reversal of 2721652505 is 5052561272.

It is not a de Polignac number, because 2721652505 - 2⁶ = 2721652441 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

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, 1902539 + ... + 1903968.

It is an arithmetic number, because the mean of its divisors is an integer number (239810004).

Almost surely, 2^2721652505 is an apocalyptic number.

It is an amenable number.

2721652505 is a deficient number, since it is larger than the sum of its proper divisors (1115307559).

2721652505 is a wasteful number, since it uses less digits than its factorization.

2721652505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3806536.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 2721652505 is about 52169.4595045799. The cubic root of 2721652505 is about 1396.1890411629.

The spelling of 2721652505 in words is "two billion, seven hundred twenty-one million, six hundred fifty-two thousand, five hundred five".