2532001561 has 4 divisors (see below), whose sum is σ = 2533201972. Its totient is φ = 2530801152.

The previous prime is 2532001553. The next prime is 2532001567. The reversal of 2532001561 is 1651002352.

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 45981961 + 2486019600 = 6781^2 + 49860^2 .

It is a cyclic number.

It is not a de Polignac number, because 2532001561 - 2³ = 2532001553 is a prime.

It is a super-2 number, since 2×2532001561² = 12822063809812873442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2532001567) 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 3 ways as a sum of consecutive naturals, for example, 597036 + ... + 601261.

It is an arithmetic number, because the mean of its divisors is an integer number (633300493).

Almost surely, 2^2532001561 is an apocalyptic number.

It is an amenable number.

2532001561 is a deficient number, since it is larger than the sum of its proper divisors (1200411).

2532001561 is a wasteful number, since it uses less digits than its factorization.

2532001561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200410.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 2532001561 is about 50318.9980126791. The cubic root of 2532001561 is about 1362.9753129530.

The spelling of 2532001561 in words is "two billion, five hundred thirty-two million, one thousand, five hundred sixty-one".