2520656061 has 16 divisors (see below), whose sum is σ = 4190181888. Its totient is φ = 1309431600.

The previous prime is 2520656059. The next prime is 2520656063. The reversal of 2520656061 is 1606560252.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2520656059) and next prime (2520656063).

It is not a de Polignac number, because 2520656061 - 2¹ = 2520656059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520656063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5455735 + ... + 5456196.

It is an arithmetic number, because the mean of its divisors is an integer number (261886368).

Almost surely, 2^2520656061 is an apocalyptic number.

2520656061 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2520656061 is a deficient number, since it is larger than the sum of its proper divisors (1669525827).

2520656061 is a wasteful number, since it uses less digits than its factorization.

2520656061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10911952.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 2520656061 is about 50206.1356907699. The cubic root of 2520656061 is about 1360.9365055228.

The spelling of 2520656061 in words is "two billion, five hundred twenty million, six hundred fifty-six thousand, sixty-one".