53498639 has 2 divisors, whose sum is σ = 53498640. Its totient is φ = 53498638.

The previous prime is 53498587. The next prime is 53498651. The reversal of 53498639 is 93689435.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53498639 - 2⁸ = 53498383 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53498593 and 53498602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53438639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26749319 + 26749320.

It is an arithmetic number, because the mean of its divisors is an integer number (26749320).

Almost surely, 2^53498639 is an apocalyptic number.

53498639 is a deficient number, since it is larger than the sum of its proper divisors (1).

53498639 is an equidigital number, since it uses as much as digits as its factorization.

53498639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 699840, while the sum is 47.

The square root of 53498639 is about 7314.2763825275. The cubic root of 53498639 is about 376.8029069207.

The spelling of 53498639 in words is "fifty-three million, four hundred ninety-eight thousand, six hundred thirty-nine".