30501953 has 2 divisors, whose sum is σ = 30501954. Its totient is φ = 30501952.

The previous prime is 30501931. The next prime is 30501959. The reversal of 30501953 is 35910503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30162064 + 339889 = 5492^2 + 583^2 .

It is an emirp because it is prime and its reverse (35910503) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30501953 - 2¹⁴ = 30485569 is a prime.

It is not a weakly prime, because it can be changed into another prime (30501959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15250976 + 15250977.

It is an arithmetic number, because the mean of its divisors is an integer number (15250977).

Almost surely, 2^30501953 is an apocalyptic number.

It is an amenable number.

30501953 is a deficient number, since it is larger than the sum of its proper divisors (1).

30501953 is an equidigital number, since it uses as much as digits as its factorization.

30501953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2025, while the sum is 26.

The square root of 30501953 is about 5522.8573220752. The cubic root of 30501953 is about 312.4466571350.

The spelling of 30501953 in words is "thirty million, five hundred one thousand, nine hundred fifty-three".