56430143 has 32 divisors (see below), whose sum is σ = 74856960. Its totient is φ = 41247360.

The previous prime is 56430103. The next prime is 56430149. The reversal of 56430143 is 34103465.

It is a Cunningham number, because it is equal to 7512²-1.

It is not a de Polignac number, because 56430143 - 2⁶ = 56430079 is a prime.

It is a super-2 number, since 2×56430143² = 6368722078000898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56430149) 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, 82280 + ... + 82962.

It is an arithmetic number, because the mean of its divisors is an integer number (2339280).

Almost surely, 2^56430143 is an apocalyptic number.

56430143 is a deficient number, since it is larger than the sum of its proper divisors (18426817).

56430143 is a wasteful number, since it uses less digits than its factorization.

56430143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 56430143 is about 7511.9999334398. Note that the first 4 decimals coincide. The cubic root of 56430143 is about 383.5633033862.

The spelling of 56430143 in words is "fifty-six million, four hundred thirty thousand, one hundred forty-three".