56121150 has 48 divisors (see below), whose sum is σ = 145240704. Its totient is φ = 14314080.

The previous prime is 56121137. The next prime is 56121151. The reversal of 56121150 is 5112165.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56121151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4684 + ... + 11583.

It is an arithmetic number, because the mean of its divisors is an integer number (3025848).

Almost surely, 2^56121150 is an apocalyptic number.

56121150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56121150 is an abundant number, since it is smaller than the sum of its proper divisors (89119554).

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

56121150 is a wasteful number, since it uses less digits than its factorization.

56121150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16305 (or 16300 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 56121150 is about 7491.4050751511. The cubic root of 56121150 is about 382.8619326141.

The spelling of 56121150 in words is "fifty-six million, one hundred twenty-one thousand, one hundred fifty".