55413250 has 16 divisors (see below), whose sum is σ = 103734072. Its totient is φ = 22165200.

The previous prime is 55413227. The next prime is 55413257. The reversal of 55413250 is 5231455.

It can be written as a sum of positive squares in 4 ways, for example, as 5583769 + 49829481 = 2363^2 + 7059^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (55413257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110577 + ... + 111076.

Almost surely, 2^55413250 is an apocalyptic number.

55413250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55413250 is a deficient number, since it is larger than the sum of its proper divisors (48320822).

55413250 is a wasteful number, since it uses less digits than its factorization.

55413250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221670 (or 221660 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 55413250 is about 7444.0076571696. The cubic root of 55413250 is about 381.2453372179.

The spelling of 55413250 in words is "fifty-five million, four hundred thirteen thousand, two hundred fifty".