2616551537 has 2 divisors, whose sum is σ = 2616551538. Its totient is φ = 2616551536.

The previous prime is 2616551519. The next prime is 2616551557. The reversal of 2616551537 is 7351556162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2616424801 + 126736 = 51151^2 + 356^2 .

It is a cyclic number.

It is not a de Polignac number, because 2616551537 - 2⁶ = 2616551473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2616551494 and 2616551503.

It is not a weakly prime, because it can be changed into another prime (2616551557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1308275768 + 1308275769.

It is an arithmetic number, because the mean of its divisors is an integer number (1308275769).

Almost surely, 2^2616551537 is an apocalyptic number.

It is an amenable number.

2616551537 is a deficient number, since it is larger than the sum of its proper divisors (1).

2616551537 is an equidigital number, since it uses as much as digits as its factorization.

2616551537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 189000, while the sum is 41.

The square root of 2616551537 is about 51152.2388268588. The cubic root of 2616551537 is about 1377.9805821808.

The spelling of 2616551537 in words is "two billion, six hundred sixteen million, five hundred fifty-one thousand, five hundred thirty-seven".