2721652501 has 4 divisors (see below), whose sum is σ = 2746621900. Its totient is φ = 2696683104.

The previous prime is 2721652469. The next prime is 2721652517. The reversal of 2721652501 is 1052561272.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1028741476 + 1692911025 = 32074^2 + 41145^2 .

It is a cyclic number.

It is not a de Polignac number, because 2721652501 - 2⁵ = 2721652469 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2721652541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12484536 + ... + 12484753.

It is an arithmetic number, because the mean of its divisors is an integer number (686655475).

Almost surely, 2^2721652501 is an apocalyptic number.

It is an amenable number.

2721652501 is a deficient number, since it is larger than the sum of its proper divisors (24969399).

2721652501 is a wasteful number, since it uses less digits than its factorization.

2721652501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24969398.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 2721652501 is about 52169.4594662433. The cubic root of 2721652501 is about 1396.1890404789.

The spelling of 2721652501 in words is "two billion, seven hundred twenty-one million, six hundred fifty-two thousand, five hundred one".