20363430553425 has 36 divisors (see below), whose sum is σ = 36473478343120. Its totient is φ = 10860403505760.

The previous prime is 20363430553357. The next prime is 20363430553451. The reversal of 20363430553425 is 52435503436302.

20363430553425 is a `hidden beast` number, since 2 + 0 + 3 + 63 + 4 + 30 + 5 + 534 + 25 = 666.

It is not a de Polignac number, because 20363430553425 - 2¹⁴ = 20363430537041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 32035542 + ... + 32665008.

Almost surely, 2^{20363430553425} is an apocalyptic number.

20363430553425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20363430553425 is a deficient number, since it is larger than the sum of its proper divisors (16110047789695).

20363430553425 is a wasteful number, since it uses less digits than its factorization.

20363430553425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773262 (or 773254 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 45.

Adding to 20363430553425 its reverse (52435503436302), we get a palindrome (72798933989727).

The spelling of 20363430553425 in words is "twenty trillion, three hundred sixty-three billion, four hundred thirty million, five hundred fifty-three thousand, four hundred twenty-five".