57006550 has 12 divisors (see below), whose sum is σ = 106032276. Its totient is φ = 22802600.

The previous prime is 57006533. The next prime is 57006553. The reversal of 57006550 is 5560075.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57006553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 570016 + ... + 570115.

It is an arithmetic number, because the mean of its divisors is an integer number (8836023).

Almost surely, 2^57006550 is an apocalyptic number.

57006550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

57006550 is a deficient number, since it is larger than the sum of its proper divisors (49025726).

57006550 is a wasteful number, since it uses less digits than its factorization.

57006550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140143 (or 1140138 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 57006550 is about 7550.2682071566. The cubic root of 57006550 is about 384.8648538978.

The spelling of 57006550 in words is "fifty-seven million, six thousand, five hundred fifty".