53898731 has 2 divisors, whose sum is σ = 53898732. Its totient is φ = 53898730.

The previous prime is 53898703. The next prime is 53898773. The reversal of 53898731 is 13789835.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53898731 - 2¹⁸ = 53636587 is a prime.

It is a super-2 number, since 2×53898731² = 5810146406820722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53898701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26949365 + 26949366.

It is an arithmetic number, because the mean of its divisors is an integer number (26949366).

Almost surely, 2^53898731 is an apocalyptic number.

53898731 is a deficient number, since it is larger than the sum of its proper divisors (1).

53898731 is an equidigital number, since it uses as much as digits as its factorization.

53898731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 44.

The square root of 53898731 is about 7341.5755121091. The cubic root of 53898731 is about 377.7398875846.

The spelling of 53898731 in words is "fifty-three million, eight hundred ninety-eight thousand, seven hundred thirty-one".