53777250 has 128 divisors (see below), whose sum is σ = 154552320. Its totient is φ = 13824000.

The previous prime is 53777249. The next prime is 53777263. The reversal of 53777250 is 5277735.

53777250 is a `hidden beast` number, since 537 + 7 + 72 + 50 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 209122 + ... + 209378.

It is an arithmetic number, because the mean of its divisors is an integer number (1207440).

Almost surely, 2^53777250 is an apocalyptic number.

53777250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 53777250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77276160).

53777250 is an abundant number, since it is smaller than the sum of its proper divisors (100775070).

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

53777250 is a wasteful number, since it uses less digits than its factorization.

53777250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 51450, while the sum is 36.

The square root of 53777250 is about 7333.2973483966. The cubic root of 53777250 is about 377.4558812817.

The spelling of 53777250 in words is "fifty-three million, seven hundred seventy-seven thousand, two hundred fifty".