56451450 has 48 divisors (see below), whose sum is σ = 152731296. Its totient is φ = 13684800.

The previous prime is 56451443. The next prime is 56451491. The reversal of 56451450 is 5415465.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15457 + ... + 18756.

It is an arithmetic number, because the mean of its divisors is an integer number (3181902).

Almost surely, 2^56451450 is an apocalyptic number.

56451450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56451450 is an abundant number, since it is smaller than the sum of its proper divisors (96279846).

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

56451450 is a wasteful number, since it uses less digits than its factorization.

56451450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34239 (or 34234 counting only the distinct ones).

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

The square root of 56451450 is about 7513.4179971568. The cubic root of 56451450 is about 383.6115728304.

The spelling of 56451450 in words is "fifty-six million, four hundred fifty-one thousand, four hundred fifty".