2530020731 has 8 divisors (see below), whose sum is σ = 2891919360. Its totient is φ = 2168238888.

The previous prime is 2530020683. The next prime is 2530020739. The reversal of 2530020731 is 1370200352.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2530020731 is a prime.

It is a super-2 number, since 2×2530020731² = 12802009798579548722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2530020697 and 2530020706.

It is not an unprimeable number, because it can be changed into a prime (2530020739) 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, 23600 + ... + 74946.

It is an arithmetic number, because the mean of its divisors is an integer number (361489920).

Almost surely, 2^2530020731 is an apocalyptic number.

2530020731 is a deficient number, since it is larger than the sum of its proper divisors (361898629).

2530020731 is an equidigital number, since it uses as much as digits as its factorization.

2530020731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58393.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 2530020731 is about 50299.3114366390. The cubic root of 2530020731 is about 1362.6197935914.

The spelling of 2530020731 in words is "two billion, five hundred thirty million, twenty thousand, seven hundred thirty-one".