53777136 has 80 divisors (see below), whose sum is σ = 164275200. Its totient is φ = 14832384.

The previous prime is 53777089. The next prime is 53777153. The reversal of 53777136 is 63177735.

It is a junction number, because it is equal to n+sod(n) for n = 53777094 and 53777103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6985 + ... + 12503.

It is an arithmetic number, because the mean of its divisors is an integer number (2053440).

Almost surely, 2^53777136 is an apocalyptic number.

53777136 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 53777136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82137600).

53777136 is an abundant number, since it is smaller than the sum of its proper divisors (110498064).

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

53777136 is a wasteful number, since it uses less digits than its factorization.

53777136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5566 (or 5560 counting only the distinct ones).

The product of its digits is 92610, while the sum is 39.

The square root of 53777136 is about 7333.2895756270. The cubic root of 53777136 is about 377.4556145642.

The spelling of 53777136 in words is "fifty-three million, seven hundred seventy-seven thousand, one hundred thirty-six".