52891776 has 144 divisors (see below), whose sum is σ = 177239790. Its totient is φ = 15095808.

The previous prime is 52891771. The next prime is 52891799. The reversal of 52891776 is 67719825.

It can be written as a sum of positive squares in only one way, i.e., 52186176 + 705600 = 7224^2 + 840^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (52891771) 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, 55980 + ... + 56916.

Almost surely, 2^52891776 is an apocalyptic number.

52891776 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 52891776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88619895).

52891776 is an abundant number, since it is smaller than the sum of its proper divisors (124348014).

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

52891776 is a wasteful number, since it uses less digits than its factorization.

52891776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971 (or 949 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 52891776 is about 7272.6732361629. The cubic root of 52891776 is about 375.3727280740.

The spelling of 52891776 in words is "fifty-two million, eight hundred ninety-one thousand, seven hundred seventy-six".