537812856 has 72 divisors (see below), whose sum is σ = 1666271880. Its totient is φ = 153512064.

The previous prime is 537812851. The next prime is 537812881. The reversal of 537812856 is 658218735.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537812851) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 520116 + ... + 521148.

It is an arithmetic number, because the mean of its divisors is an integer number (23142665).

Almost surely, 2^537812856 is an apocalyptic number.

537812856 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 537812856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (833135940).

537812856 is an abundant number, since it is smaller than the sum of its proper divisors (1128459024).

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

537812856 is a wasteful number, since it uses less digits than its factorization.

537812856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2085 (or 1045 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 537812856 is about 23190.7924832249. The cubic root of 537812856 is about 813.2243858071.

The spelling of 537812856 in words is "five hundred thirty-seven million, eight hundred twelve thousand, eight hundred fifty-six".