56151447 has 32 divisors (see below), whose sum is σ = 85155840. Its totient is φ = 32604000.

The previous prime is 56151439. The next prime is 56151451. The reversal of 56151447 is 74415165.

It is not a de Polignac number, because 56151447 - 2³ = 56151439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56150447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133804 + ... + 134222.

It is an arithmetic number, because the mean of its divisors is an integer number (2661120).

Almost surely, 2^56151447 is an apocalyptic number.

56151447 is a deficient number, since it is larger than the sum of its proper divisors (29004393).

56151447 is a wasteful number, since it uses less digits than its factorization.

56151447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595.

The product of its digits is 16800, while the sum is 33.

The square root of 56151447 is about 7493.4269196410. The cubic root of 56151447 is about 382.9308162184.

The spelling of 56151447 in words is "fifty-six million, one hundred fifty-one thousand, four hundred forty-seven".