53431632240 has 320 divisors, whose sum is σ = 195995074560. Its totient is φ = 11783439360.

The previous prime is 53431632229. The next prime is 53431632251. The reversal of 53431632240 is 4223613435.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (53431632229) and next prime (53431632251).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19736967 + ... + 19739673.

It is an arithmetic number, because the mean of its divisors is an integer number (612484608).

Almost surely, 2^53431632240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53431632240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97997537280).

53431632240 is an abundant number, since it is smaller than the sum of its proper divisors (142563442320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53431632240 is a wasteful number, since it uses less digits than its factorization.

53431632240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3140 (or 3134 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 33.

The spelling of 53431632240 in words is "fifty-three billion, four hundred thirty-one million, six hundred thirty-two thousand, two hundred forty".