55803450 has 24 divisors (see below), whose sum is σ = 138392928. Its totient is φ = 14880880.

The previous prime is 55803413. The next prime is 55803487. The reversal of 55803450 is 5430855.

It is an interprime number because it is at equal distance from previous prime (55803413) and next prime (55803487).

It is a super-2 number, since 2×55803450² = 6228050063805000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185862 + ... + 186161.

It is an arithmetic number, because the mean of its divisors is an integer number (5766372).

Almost surely, 2^55803450 is an apocalyptic number.

55803450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55803450 is an abundant number, since it is smaller than the sum of its proper divisors (82589478).

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

55803450 is a wasteful number, since it uses less digits than its factorization.

55803450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372038 (or 372033 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 55803450 is about 7470.1706807810. The cubic root of 55803450 is about 382.1381087382.

The spelling of 55803450 in words is "fifty-five million, eight hundred three thousand, four hundred fifty".