55911250 has 20 divisors (see below), whose sum is σ = 104802390. Its totient is φ = 22364000.

The previous prime is 55911227. The next prime is 55911253. The reversal of 55911250 is 5211955.

It can be written as a sum of positive squares in 5 ways, for example, as 3508129 + 52403121 = 1873^2 + 7239^2 .

It is not an unprimeable number, because it can be changed into a prime (55911253) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 21115 + ... + 23614.

Almost surely, 2^55911250 is an apocalyptic number.

55911250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55911250 is a deficient number, since it is larger than the sum of its proper divisors (48891140).

55911250 is an equidigital number, since it uses as much as digits as its factorization.

55911250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44751 (or 44736 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 28.

The square root of 55911250 is about 7477.3825634376. The cubic root of 55911250 is about 382.3840194021.

The spelling of 55911250 in words is "fifty-five million, nine hundred eleven thousand, two hundred fifty".