53782639 has 2 divisors, whose sum is σ = 53782640. Its totient is φ = 53782638.

The previous prime is 53782633. The next prime is 53782643. The reversal of 53782639 is 93628735.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53782639 - 2⁵ = 53782607 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53782595 and 53782604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53782633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26891319 + 26891320.

It is an arithmetic number, because the mean of its divisors is an integer number (26891320).

Almost surely, 2^53782639 is an apocalyptic number.

53782639 is a deficient number, since it is larger than the sum of its proper divisors (1).

53782639 is an equidigital number, since it uses as much as digits as its factorization.

53782639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 43.

The square root of 53782639 is about 7333.6647728131. The cubic root of 53782639 is about 377.4684891026.

The spelling of 53782639 in words is "fifty-three million, seven hundred eighty-two thousand, six hundred thirty-nine".