20253035345 has 16 divisors (see below), whose sum is σ = 24419266560. Its totient is φ = 16125456384.

The previous prime is 20253035339. The next prime is 20253035347. The reversal of 20253035345 is 54353035202.

It is a cyclic number.

It is not a de Polignac number, because 20253035345 - 2⁴ = 20253035329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20253035347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1637354 + ... + 1649676.

It is an arithmetic number, because the mean of its divisors is an integer number (1526204160).

Almost surely, 2^20253035345 is an apocalyptic number.

It is an amenable number.

20253035345 is a deficient number, since it is larger than the sum of its proper divisors (4166231215).

20253035345 is a wasteful number, since it uses less digits than its factorization.

20253035345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13864.

The product of its (nonzero) digits is 54000, while the sum is 32.

The spelling of 20253035345 in words is "twenty billion, two hundred fifty-three million, thirty-five thousand, three hundred forty-five".