55747300 has 108 divisors (see below), whose sum is σ = 145657344. Its totient is φ = 18446400.

The previous prime is 55747297. The next prime is 55747313. The reversal of 55747300 is 374755.

It is a super-2 number, since 2×55747300² = 6215522914580000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 151717 + ... + 152083.

Almost surely, 2^55747300 is an apocalyptic number.

55747300 is a gapful number since it is divisible by the number (50) 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 55747300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72828672).

55747300 is an abundant number, since it is smaller than the sum of its proper divisors (89910044).

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

55747300 is a wasteful number, since it uses less digits than its factorization.

55747300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 55747300 is about 7466.4114539717. The cubic root of 55747300 is about 382.0098953057.

The spelling of 55747300 in words is "fifty-five million, seven hundred forty-seven thousand, three hundred".