55983150 has 120 divisors (see below), whose sum is σ = 162583344. Its totient is φ = 14256000.

The previous prime is 55983133. The next prime is 55983167. The reversal of 55983150 is 5138955.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55983133) and next prime (55983167).

It is a super-2 number, since 2×55983150² = 6268226167845000, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 92850 + ... + 93450.

Almost surely, 2^55983150 is an apocalyptic number.

55983150 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 55983150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81291672).

55983150 is an abundant number, since it is smaller than the sum of its proper divisors (106600194).

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

55983150 is a wasteful number, since it uses less digits than its factorization.

55983150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 55983150 is about 7482.1888508644. The cubic root of 55983150 is about 382.5478602166.

The spelling of 55983150 in words is "fifty-five million, nine hundred eighty-three thousand, one hundred fifty".