275275019501 has 2 divisors, whose sum is σ = 275275019502. Its totient is φ = 275275019500.

The previous prime is 275275019489. The next prime is 275275019561. The reversal of 275275019501 is 105910572572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 266848697476 + 8426322025 = 516574^2 + 91795^2 .

It is a cyclic number.

It is not a de Polignac number, because 275275019501 - 2¹⁰ = 275275018477 is a prime.

It is a super-2 number, since 2×275275019501² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275275019561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137637509750 + 137637509751.

It is an arithmetic number, because the mean of its divisors is an integer number (137637509751).

Almost surely, 2^275275019501 is an apocalyptic number.

It is an amenable number.

275275019501 is a deficient number, since it is larger than the sum of its proper divisors (1).

275275019501 is an equidigital number, since it uses as much as digits as its factorization.

275275019501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 220500, while the sum is 44.

The spelling of 275275019501 in words is "two hundred seventy-five billion, two hundred seventy-five million, nineteen thousand, five hundred one".