53780131 has 2 divisors, whose sum is σ = 53780132. Its totient is φ = 53780130.

The previous prime is 53780117. The next prime is 53780137. The reversal of 53780131 is 13108735.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53780131 - 2¹⁵ = 53747363 is a prime.

It is a super-2 number, since 2×53780131² = 5784604980754322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53780131.

It is not a weakly prime, because it can be changed into another prime (53780137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26890065 + 26890066.

It is an arithmetic number, because the mean of its divisors is an integer number (26890066).

Almost surely, 2^53780131 is an apocalyptic number.

53780131 is a deficient number, since it is larger than the sum of its proper divisors (1).

53780131 is an equidigital number, since it uses as much as digits as its factorization.

53780131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 53780131 is about 7333.4937785478. The cubic root of 53780131 is about 377.4626216225.

Adding to 53780131 its reverse (13108735), we get a palindrome (66888866).

The spelling of 53780131 in words is "fifty-three million, seven hundred eighty thousand, one hundred thirty-one".