2573532621 has 32 divisors (see below), whose sum is σ = 4200474240. Its totient is φ = 1544256000.

The previous prime is 2573532617. The next prime is 2573532679. The reversal of 2573532621 is 1262353752.

2573532621 is a `hidden beast` number, since 25 + 7 + 3 + 5 + 3 + 2 + 621 = 666.

It is not a de Polignac number, because 2573532621 - 2² = 2573532617 is a prime.

It is a super-2 number, since 2×2573532621² = 13246140302702259282, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2573532421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12900 + ... + 72893.

It is an arithmetic number, because the mean of its divisors is an integer number (131264820).

Almost surely, 2^2573532621 is an apocalyptic number.

It is an amenable number.

2573532621 is a deficient number, since it is larger than the sum of its proper divisors (1626941619).

2573532621 is a wasteful number, since it uses less digits than its factorization.

2573532621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85914 (or 85908 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 2573532621 is about 50729.9972501478. The cubic root of 2573532621 is about 1370.3869865974.

The spelling of 2573532621 in words is "two billion, five hundred seventy-three million, five hundred thirty-two thousand, six hundred twenty-one".