2531740421 has 8 divisors (see below), whose sum is σ = 2897000640. Its totient is φ = 2167375968.

The previous prime is 2531740381. The next prime is 2531740489. The reversal of 2531740421 is 1240471352.

2531740421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2531740421 - 2¹⁴ = 2531724037 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 (2531740121) 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, 217871 + ... + 229196.

It is an arithmetic number, because the mean of its divisors is an integer number (362125080).

Almost surely, 2^2531740421 is an apocalyptic number.

It is an amenable number.

2531740421 is a deficient number, since it is larger than the sum of its proper divisors (365260219).

2531740421 is an equidigital number, since it uses as much as digits as its factorization.

2531740421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447883.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 2531740421 is about 50316.4031007782. The cubic root of 2531740421 is about 1362.9284541601.

The spelling of 2531740421 in words is "two billion, five hundred thirty-one million, seven hundred forty thousand, four hundred twenty-one".