53403620499 has 24 divisors (see below), whose sum is σ = 78956197632. Its totient is φ = 34772880240.

The previous prime is 53403620471. The next prime is 53403620527. The reversal of 53403620499 is 99402630435.

53403620499 is a `hidden beast` number, since 534 + 0 + 3 + 6 + 20 + 4 + 99 = 666.

53403620499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (53403620471) and next prime (53403620527).

It is not a de Polignac number, because 53403620499 - 2⁷ = 53403620371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53403620419) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 322159 + ... + 458904.

It is an arithmetic number, because the mean of its divisors is an integer number (3289841568).

Almost surely, 2^53403620499 is an apocalyptic number.

53403620499 is a deficient number, since it is larger than the sum of its proper divisors (25552577133).

53403620499 is a wasteful number, since it uses less digits than its factorization.

53403620499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781247 (or 781244 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 45.

The spelling of 53403620499 in words is "fifty-three billion, four hundred three million, six hundred twenty thousand, four hundred ninety-nine".