55357650 has 36 divisors (see below), whose sum is σ = 148728762. Its totient is φ = 14761920.

The previous prime is 55357639. The next prime is 55357651. The reversal of 55357650 is 5675355.

55357650 is a `hidden beast` number, since 5 + 535 + 76 + 50 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 43599609 + 11758041 = 6603^2 + 3429^2 .

It is not an unprimeable number, because it can be changed into a prime (55357651) 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, 61059 + ... + 61958.

Almost surely, 2^55357650 is an apocalyptic number.

55357650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55357650 is an abundant number, since it is smaller than the sum of its proper divisors (93371112).

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

55357650 is a wasteful number, since it uses less digits than its factorization.

55357650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123035 (or 123027 counting only the distinct ones).

The product of its (nonzero) digits is 78750, while the sum is 36.

The square root of 55357650 is about 7440.2721724410. The cubic root of 55357650 is about 381.1177844860.

The spelling of 55357650 in words is "fifty-five million, three hundred fifty-seven thousand, six hundred fifty".