53136457437 has 32 divisors (see below), whose sum is σ = 83054732544. Its totient is φ = 29583820800.

The previous prime is 53136457433. The next prime is 53136457441. The reversal of 53136457437 is 73475463135.

It is an interprime number because it is at equal distance from previous prime (53136457433) and next prime (53136457441).

It is not a de Polignac number, because 53136457437 - 2² = 53136457433 is a prime.

It is a super-2 number, since 2×53136457437² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53136457433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 614673 + ... + 695769.

It is an arithmetic number, because the mean of its divisors is an integer number (2595460392).

Almost surely, 2^53136457437 is an apocalyptic number.

It is an amenable number.

53136457437 is a deficient number, since it is larger than the sum of its proper divisors (29918275107).

53136457437 is a wasteful number, since it uses less digits than its factorization.

53136457437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81909.

The product of its digits is 3175200, while the sum is 48.

The spelling of 53136457437 in words is "fifty-three billion, one hundred thirty-six million, four hundred fifty-seven thousand, four hundred thirty-seven".