53620753491 has 24 divisors (see below), whose sum is σ = 80442922560. Its totient is φ = 35692817832.

The previous prime is 53620753469. The next prime is 53620753513. The reversal of 53620753491 is 19435702635.

53620753491 is a `hidden beast` number, since 5 + 3 + 6 + 20 + 7 + 534 + 91 = 666.

It is an interprime number because it is at equal distance from previous prime (53620753469) and next prime (53620753513).

It is not a de Polignac number, because 53620753491 - 2⁶ = 53620753427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53620753421) 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 in 23 ways as a sum of consecutive naturals, for example, 7285 + ... + 327558.

It is an arithmetic number, because the mean of its divisors is an integer number (3351788440).

Almost surely, 2^53620753491 is an apocalyptic number.

53620753491 is a deficient number, since it is larger than the sum of its proper divisors (26822169069).

53620753491 is an equidigital number, since it uses as much as digits as its factorization.

53620753491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335517 (or 335505 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 45.

The spelling of 53620753491 in words is "fifty-three billion, six hundred twenty million, seven hundred fifty-three thousand, four hundred ninety-one".