56001000437 has 2 divisors, whose sum is σ = 56001000438. Its totient is φ = 56001000436.

The previous prime is 56001000431. The next prime is 56001000469. The reversal of 56001000437 is 73400010065.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28194103921 + 27806896516 = 167911^2 + 166754^2 .

It is a cyclic number.

It is not a de Polignac number, because 56001000437 - 2¹² = 56000996341 is a prime.

It is a super-2 number, since 2×56001000437² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56001000431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28000500218 + 28000500219.

It is an arithmetic number, because the mean of its divisors is an integer number (28000500219).

Almost surely, 2^56001000437 is an apocalyptic number.

It is an amenable number.

56001000437 is a deficient number, since it is larger than the sum of its proper divisors (1).

56001000437 is an equidigital number, since it uses as much as digits as its factorization.

56001000437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 26.

The spelling of 56001000437 in words is "fifty-six billion, one million, four hundred thirty-seven", and thus it is an aban number.