2521060061 has 12 divisors (see below), whose sum is σ = 2838170748. Its totient is φ = 2225946624.

The previous prime is 2521060043. The next prime is 2521060079. The reversal of 2521060061 is 1600601252.

It is an interprime number because it is at equal distance from previous prime (2521060043) and next prime (2521060079).

It can be written as a sum of positive squares in 2 ways, for example, as 1225420036 + 1295640025 = 35006^2 + 35995^2 .

It is not a de Polignac number, because 2521060061 - 2³⁰ = 1447318237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521060021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 176420 + ... + 190173.

It is an arithmetic number, because the mean of its divisors is an integer number (236514229).

Almost surely, 2^2521060061 is an apocalyptic number.

It is an amenable number.

2521060061 is a deficient number, since it is larger than the sum of its proper divisors (317110687).

2521060061 is a wasteful number, since it uses less digits than its factorization.

2521060061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366652 (or 366629 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 2521060061 is about 50210.1589421902. The cubic root of 2521060061 is about 1361.0092100044.

The spelling of 2521060061 in words is "two billion, five hundred twenty-one million, sixty thousand, sixty-one".