53774550 has 96 divisors (see below), whose sum is σ = 150838560. Its totient is φ = 14083200.

The previous prime is 53774537. The next prime is 53774551. The reversal of 53774550 is 5547735.

53774550 is a `hidden beast` number, since 5 + 37 + 74 + 550 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53774551) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 82024 + ... + 82676.

It is an arithmetic number, because the mean of its divisors is an integer number (1571235).

Almost surely, 2^53774550 is an apocalyptic number.

53774550 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 53774550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75419280).

53774550 is an abundant number, since it is smaller than the sum of its proper divisors (97064010).

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

53774550 is a wasteful number, since it uses less digits than its factorization.

53774550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735 (or 724 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 36.

The square root of 53774550 is about 7333.1132542734. The cubic root of 53774550 is about 377.4495641871.

The spelling of 53774550 in words is "fifty-three million, seven hundred seventy-four thousand, five hundred fifty".