20035050551 has 2 divisors, whose sum is σ = 20035050552. Its totient is φ = 20035050550.

The previous prime is 20035050523. The next prime is 20035050601. The reversal of 20035050551 is 15505053002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20035050551 - 2²² = 20030856247 is a prime.

It is a super-2 number, since 2×20035050551² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20035050551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20035053551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10017525275 + 10017525276.

It is an arithmetic number, because the mean of its divisors is an integer number (10017525276).

Almost surely, 2^20035050551 is an apocalyptic number.

20035050551 is a deficient number, since it is larger than the sum of its proper divisors (1).

20035050551 is an equidigital number, since it uses as much as digits as its factorization.

20035050551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3750, while the sum is 26.

The spelling of 20035050551 in words is "twenty billion, thirty-five million, fifty thousand, five hundred fifty-one".