30725400003 has 16 divisors (see below), whose sum is σ = 41128682880. Its totient is φ = 20403000576.

The previous prime is 30725399983. The next prime is 30725400031. The reversal of 30725400003 is 30000452703.

It is not a de Polignac number, because 30725400003 - 2²¹ = 30723302851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30725400073) 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 15 ways as a sum of consecutive naturals, for example, 877651 + ... + 911987.

It is an arithmetic number, because the mean of its divisors is an integer number (2570542680).

Almost surely, 2^30725400003 is an apocalyptic number.

30725400003 is a deficient number, since it is larger than the sum of its proper divisors (10403282877).

30725400003 is a wasteful number, since it uses less digits than its factorization.

30725400003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35506.

The product of its (nonzero) digits is 2520, while the sum is 24.

Adding to 30725400003 its reverse (30000452703), we get a palindrome (60725852706).

The spelling of 30725400003 in words is "thirty billion, seven hundred twenty-five million, four hundred thousand, three".