2573521973 has 8 divisors (see below), whose sum is σ = 2904288480. Its totient is φ = 2258890480.

The previous prime is 2573521969. The next prime is 2573522027. The reversal of 2573521973 is 3791253752.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2573521973 - 2² = 2573521969 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2573521913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4033415 + ... + 4034052.

It is an arithmetic number, because the mean of its divisors is an integer number (363036060).

Almost surely, 2^2573521973 is an apocalyptic number.

It is an amenable number.

2573521973 is a deficient number, since it is larger than the sum of its proper divisors (330766507).

2573521973 is a wasteful number, since it uses less digits than its factorization.

2573521973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8067507.

The product of its digits is 396900, while the sum is 44.

The square root of 2573521973 is about 50729.8923022709. The cubic root of 2573521973 is about 1370.3850966012.

The spelling of 2573521973 in words is "two billion, five hundred seventy-three million, five hundred twenty-one thousand, nine hundred seventy-three".