55401150 has 96 divisors (see below), whose sum is σ = 165346560. Its totient is φ = 11992320.

The previous prime is 55401149. The next prime is 55401167. The reversal of 55401150 is 5110455.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18562 + ... + 21338.

It is an arithmetic number, because the mean of its divisors is an integer number (1722360).

Almost surely, 2^55401150 is an apocalyptic number.

55401150 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 55401150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82673280).

55401150 is an abundant number, since it is smaller than the sum of its proper divisors (109945410).

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

55401150 is a wasteful number, since it uses less digits than its factorization.

55401150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2818 (or 2813 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 55401150 is about 7443.1948785451. The cubic root of 55401150 is about 381.2175857061.

The spelling of 55401150 in words is "fifty-five million, four hundred one thousand, one hundred fifty".